B421

View detailed technical data, stock status, and sourcing information for: B421

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 B421 to receive an up to date pricing and availability quote by email.

B421
Federal Supply Group
Vehicular Equipment Components
Federal Supply Classification
2540 Vehicular Furniture and Accessories
National Stock Number
2540-00-040-2170
Item Name Code
77777
Assigment Date
01/01/1963 (63 years ago)

material,cast bronze,first end data,1st seat,0.250 in. h,0.937 in. dia,1st groove,0.656 in. dia,0.375 in. w,2nd seat,1.062 in. dia,0.250 in. h,2nd groove,0.750 in. dia,0.562 in. w,thd data,15/16-1250p-2500,3.375 in. thd lg,2nd end data,1st step thd,7/16-14nc-2,0.438 in. thd lg,2nd step squared,0.500 in.square,3 deg taper,0.656 in. square leg,3rd step tapered from 0.9313 in. min,0.9375 in. max to 0.729 in. min,0.734 in. max,5.937 in. lg general characteristics item description

Product Characteristics

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

General Characteristics Item Description
material,cast bronze,first end data,1st seat,0.250 in. h,0.937 in. dia,1st groove,0.656 in. dia,0.375 in. w,2nd seat,1.062 in. dia,0.250 in. h,2nd groove,0.750 in. dia,0.562 in. w,thd data,15/16-1250p-2500,3.375 in. thd lg,2nd end data,1st step thd,7/16-14nc-2,0.438 in. thd lg,2nd step squared,0.500 in.square,3 deg taper,0.656 in. square leg,3rd step tapered from 0.9313 in. min,0.9375 in. max to 0.729 in. min,0.734 in. max,5.937 in. lg

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
8330118 Stem
B421 Stem

FAQs

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

What is the FSCG of the NSN 2540-00-040-2170?
The FSCG of the NSN 2540-00-040-2170 is 2540
Does NSN 2540-00-040-2170 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 2540-00-040-2170 contain precious materials?
Precious metal content is unknown
Does NSN 2540-00-040-2170 contain hazardous materials?
Indicates there is no information in the hmirs. The nsn is in a fsc in table ii of fed std 313 and a msds may be required by the user. The requirement for a msds is dependent on a hazard determination of the supplier or the intended end use of item.
When the NSN 2540-00-040-2170 was assigned to the Federal Catalog?
It was assigned 63 years ago, on Tue, Jan 1, 1963

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

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:

183377
5895-00-436-2614
Collar
183378
3030-00-225-3785
Positive Drive Belt
183379
3030-00-225-3782
Positive Drive Belt
1833796
5935-00-609-5389
Electrical Connector Cover
1833798C91
2910-01-383-5630
Fuel Injection Nozzle
18337CP
3110-00-143-7584
Tapered Roller Bearing Cup
18337N
4810-01-453-7047
Lin Hydraulic-Pneumatic Actuator
18337N PC 1
4810-01-453-7047
Lin Hydraulic-Pneumatic Actuator
18337N PC 18
5330-01-456-4685
Gasket
18337N PC 27
5330-00-934-7974
Gasket
18337N PC 32
4820-01-453-7045
Cylinder Bottom
18337N PC 33
4820-01-455-6136
Valve Seat
18337N PC 34
4820-01-455-7551
Valve Seat
18337N REFF ITEM 18
5330-01-456-4685
Gasket
18337NPC26
5360-01-346-2495
Compression Helical Spring