MS51988-7

View detailed technical data, stock status, and sourcing information for: MS51988-7

DODParts.com distributes related products varnishes dopes paints, aircraft parts and consumables, electrical parts, fittings and other components for the aerospace and defense industries. Submit the short price quote form for part MS51988-7 to receive an up to date pricing and availability quote by email.

MS51988-7
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5310 Nuts and Washers
National Stock Number
5310-00-930-8214
Item Name Code
29730
Assigment Date
07/06/1966 (60 years ago)

An electronic device which develops a discontinuous electrical potential with an abrupt rate of change of voltage which determines the harmonic content of the pulse train. The duration of a single pulse output is relatively short compared to the time of the recurrence cycle. See also generator, single pulse; and generator, electronic marker.

prevailing torque all metal design locking feature, 2b thread class, right-hand thread direction, dry film lubricant lubrication, 0.728 inches minimum and 0.750 inches maximum washer outside diameter

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Thread Class
2b
Thread Direction
right-hand
Locking Feature
prevailing torque all metal design
Washer Outside Diameter
0.728 inches minimum and 0.750 inches maximum
Lubrication
dry film lubricant
Overall Height
0.385 inches maximum
Nut Style
hexagon
Washer Thickness
0.050 inches minimum and 0.070 inches maximum
Width Across Flats
0.5510 inches minimum and 0.5645 inches maximum
Thread Series
unc
Thread Quantity Per Inch
16
Nominal Thread Size
0.375 inches
Material
steel overall
Surface Treatment
cadmium and chromate overall
Surface Treatment Document And Classification
qq-p-416,ty 2,cl 3 fed spec single treatment response overall

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN Name Date
5310-01-017-3843 No Name Available 09/01/1986
5310-01-075-8543 No Name Available 03/01/1988
5310-01-212-2215 No Name Available 09/01/2001
5310-01-265-8968 No Name Available 01/01/1998

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number Name
12339502 Extended Washer Self-Locking Nut
192077 Extended Washer Self-Locking Nut
3KK205 Extended Washer Self-Locking Nut
5310009308214 Extended Washer Self-Locking Nut
5584334 Extended Washer Self-Locking Nut
89325 Extended Washer Self-Locking Nut
MS51988-7 Extended Washer Self-Locking Nut

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 5310-00-930-8214?
The FSCG of the NSN 5310-00-930-8214 is 5310
Does the NSN 5310-00-930-8214 have a Schedule B code assigned?
Yes, the Schedule B code is 7318160000
Does NSN 5310-00-930-8214 require demilitarization?
Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.
Does NSN 5310-00-930-8214 contain precious materials?
Item does not contain precious metal.
Does NSN 5310-00-930-8214 contain hazardous materials?
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
When the NSN 5310-00-930-8214 was assigned to the Federal Catalog?
It was assigned 60 years ago, on Wed, Jul 6, 1966

Professional Distribution

Certified to meet the strict requirements of defense, aerospace, and hazardous materials distribution.

  • ITAR Registered
  • DDTC Registered
  • HAZMAT Certified
  • AS9120 Quality Standards
  • 100% Quality Inspections

You May Also Like

Browse other in-demand NSN parts sourced by professionals in defense, aerospace, and manufacturing sectors. Each component meets strict standards for quality and performance.

Pricing

Submit your request below and our team will respond quickly with up-to-date pricing, delivery estimates, and stock information:

ITAR Registered

In Stock

This item is currently available and ready for prompt shipment. Units may be offered in various conditions — new, surplus, or refurbished — and stored at verified global facilities. Request a quote to confirm current stock and delivery time.

New Surplus 374
New Material 795
Total 1,169
Availability of this item was last updated on: 06/10/2026 08:06 PM EDT. Stock levels and pricing are subject to change.

Featured Parts

Explore our most requested parts, carefully selected based on customer demand and sourcing activity. Each listing provides current specifications, availability status, and item condition:

BS6-1416ITEM7
5310-00-420-7304
Propeller Nut
BS6-1609
4320-00-267-3287
Centrifugal Pump Unit
BS6-1609V1B
4320-00-267-3287
Centrifugal Pump Unit
BS6-1618
4320-00-267-3193
Centrifugal Pump Unit
BS6-1618V1A
4320-00-267-3193
Centrifugal Pump Unit
BS6-1633PC6
4320-00-103-8375
Wearing Ring
BS6-1689-4
4320-00-218-4346
Lantern Ring
BS6-1689P4
4320-00-218-4346
Lantern Ring
BS6-1689PC2
4320-00-146-8828
Hydraulic Motor-Pump Head
BS6-1689PC6
4320-00-398-9507
Dirt and Liquid Deflector
BS6-1689PC8
4320-00-569-5673
Pump Shaft Sleeve
BS6-1689PC9
5310-00-146-8815
Sleeve Nut
BS6-1690-7
5310-00-386-9560
Flat Washer
BS6-1690PC1
4320-00-146-8823
Liquid Pump Housing
BS6-1690PC11
5307-00-206-4023
Plain Stud