121557-5-A16P

View detailed technical data, stock status, and sourcing information for: 121557-5-A16P
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-059-4881

Item Name Code

29294

Assigment Date

04/12/1978 (48 years ago)

flat countersunk head style, right-hand thread direction, 1.423 inches minimum and 1.453 inches maximum fastener length, 0.413 inches minimum and 0.463 inches maximum thread length, 3a thread class

Product Characteristics

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

Thread Class: 3a
Thread Direction: right-hand
Thread Length: 0.413 inches minimum and 0.463 inches maximum
Fastener Length: 1.423 inches minimum and 1.453 inches maximum
Head Style: flat countersunk
Head Diameter: 0.573 inches minimum and 0.635 inches maximum
Grip Diameter: 0.3110 inches minimum and 0.3120 inches maximum
Internal Drive Style: offset cruciform (torque set)
Nominal Thread Diameter: 0.312 inches
Grip Length: 0.990 inches minimum and 1.010 inches maximum
Thread Quantity Per Inch: 24
Minimum Tensile Strength: 220000 pounds per square inch
Hardness Rating: 46.0 rockwell c minimum and 49.0 rockwell c maximum overall
Countersink Angle: 99.0 degrees minimum and 101.0 degrees maximum
Material: steel comp h11 overall
Material Document And Classification: ams 6487 assn std single material response overall
Surface Treatment: cadmium overall
Surface Treatment Document And Classification: nas 672 assn std single treatment response overall
Thread Series Designator: unjf

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5305-01-051-9629	No Name Available	08/01/1982

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
121557-5-A16P	Close Tolerance Screw
5305PL0651155	Close Tolerance Screw
5305PL1698082	Close Tolerance Screw
5305PL1936242	Close Tolerance Screw
AIC984-5-16	Close Tolerance Screw
AIC984-5-16P	Close Tolerance Screw
C7984-5-16	Close Tolerance Screw
H044-5-16	Close Tolerance Screw
PBF1165-5-16	Close Tolerance Screw
VT1693F5-16	Close Tolerance Screw

FAQs

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

What is the FSCG of the NSN 5305-01-059-4881?

The FSCG of the NSN 5305-01-059-4881 is 5305

Does the NSN 5305-01-059-4881 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-059-4881 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 5305-01-059-4881 contain precious materials?

Precious metal content is unknown

Does NSN 5305-01-059-4881 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 5305-01-059-4881 was assigned to the Federal Catalog?

It was assigned 48 years ago, on Wed, Apr 12, 1978