B4021 — VALVE,CHECK

B4021 is cataloged as VALVE,CHECK. It carries 2 NSN identities and cross-references to 7 related part numbers. The part appears on MCRL cross-reference data.

No live listing for B4021 right now. Have one? List it in a minute → or request a quote from sellers.

NSN identities

NSN 002890658 — VALVE,CHECK
NSN 009859008 — ELECTRON TUBE

Approved sources (CAGE)

81349 MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M · P/N 8502
19207 U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM · P/N 5329497
72582 ROLLS-ROYCE SOLUTIONS AMERICA INC · P/N 5153357
70925 BIJUR LUBRICATING CORP
83781 NATIONAL ELECTRONICS DIV OF RICHARDSON ELECTRONICS LTD · P/N JAN NL 8502
81349 MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M · P/N MIL-E-1/1536
16236 DLA WEAPONS SUPPORT (COLUMBUS) DBA DLA VENDOR ITEM DRAWING (VID) DIV DOCUMENT STANDARDIZATION DIVISION (VA) · P/N DMS 83010B
24617 GENERAL MOTORS CORP · P/N 5153357
24617 GENERAL MOTORS CORP · P/N 5152908
72582 ROLLS-ROYCE SOLUTIONS AMERICA INC · P/N 5152908
92392 ALLIS-CHALMERS CORP · P/N 5153357
09975 UNISYS CORPORATION

Government purchase history

Distinct Vendors: 0
Total: $0.00
Total Amount: $0.00

Government pricing & management

Aac: J
Aac Label: Not stocked, centrally procured on demand
Effective Date: 2026-10-01
Moe: DN
Niin: 002890658
Qup: 1
Slc: 0
Sos: SMS
Sos Label: DLA
Ui: EA
Unit Price: $28.09

Demand

Buyer Requests 90d: 0
Buyer Requests All: 0
Open Solicitations: 0

Market on PartsAndPlanes

Active Listings: 0
Avg Price: $0.00
Max Price: $0.00
Min Price: 0
Sellers: 0
Total Quantity: 0

Availability

Band: Scarce
Note: No active listings, PMA sources, or award history on file yet.

Related part numbers

5152908, 5153357, 5329497, 8502, DMS 83010B, JAN NL 8502, MIL-E-1/1536