PartsTable
Technical Data Sheet
Download PDF

21129-69 — DISK,CLUTCH,VEHICULAR

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

21129-69: DISK,CLUTCH,VEHICULAR.

The DISK,CLUTCH,VEHICULAR is a the manufacturer industrial component. Key specifications include material: COPPER, valve_size: 4.000 INCHES IN, end_item_identification: NAVY WEAPON SYSTEM CODE JG SEAWOLF CLASS SSN. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-418-4110, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
21129-69
NSN: 4820-01-418-4110
FSC: 4820 — Valves, Nonpowered
CAGE: 78062 — SARGENT AEROSPACE & DEFENSE, LLC DBA SARGENT CONTROLS & AEROSPACE DIV SARGENT CONTROLS & AEROSPACE (USA)
SPECIFICATIONS
materialCOPPER
valve_size4.000 INCHES IN
end_item_identificationNAVY WEAPON SYSTEM CODE JG SEAWOLF CLASS SSN
NSN4820-01-418-4110
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 21129-69 · OEM ⚠ VERIFY BEFORE ORDERING Gate valves = FULL OPEN or FULL CLOSE only — never throttle. Partial opening causes seat erosion and vibration. ✓ BROKER TIP Rising stem shows valve position visually — easier maintenance. Non-rising stem saves headroom. PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
VALVE SIZE: 4.000 INCHES IN
•
MATERIAL: COPPER
TECHNICAL CHARACTERISTICS
VALVE SIZE4.000 INCHES IN
END ITEM IDENTIFICATIONNAVY WEAPON SYSTEM CODE JG SEAWOLF CLASS SSN
MATERIALCOPPER
OTHER ITEMS IN FSC 4820 — Valves, Nonpowered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097 4820-00-001-0010 4820-00-001-0020 4820-00-001-0021 4820-00-001-0032 4820-00-001-0037 4820-00-001-0042 4820-00-001-1230
SUBSTITUTES & CROSS-REFERENCES 3
21129-1004Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
21108-19Reference document
Same NSN cross-reference
Reference document — Secondary reference
21108Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
Ready to buy 21129-69?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 21129-69?
21129-69 is a DISK,CLUTCH,VEHICULAR.
What parts can replace 21129-69?
There are 3 known substitutes for 21129-69: 21129-1004, 21108-19, 21108. Substitute compatibility should be verified for your specific system.
What is the NSN for 21129-69?
21129-69 is cataloged in the U.S. Government catalog under NSN 4820-01-418-4110. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 21129-69

✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.