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21368-1003-1 — CAP,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

21368-1003-1: CAP,VALVE.

The CAP,VALVE is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY, special_features: USED ON VALVE, SPECIAL SIZE P/N 21368, attachment_method: BOLTS, end_item_identification: SEAWOLF CLASS SSN, material_document_and_classification: ASTM-B211 6061-T651 ASSN STD SINGLE MATERIAL RESPONSE. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-514-9639, 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
21368-1003-1
NSN: 4820-01-514-9639
FSC: 4820 — Valves, Nonpowered
CAGE: 78062 — SARGENT AEROSPACE & DEFENSE, LLC DBA SARGENT CONTROLS & AEROSPACE DIV SARGENT CONTROLS & AEROSPACE (USA)
SPECIFICATIONS
materialALUMINUM ALLOY
special_featuresUSED ON VALVE, SPECIAL SIZE P/N 21368
attachment_methodBOLTS
end_item_identificationSEAWOLF CLASS SSN
material_document_and_classificationASTM-B211 6061-T651 ASSN STD SINGLE MATERIAL RESPONSE
NSN4820-01-514-9639
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 21368-1003-1 · 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
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM-B211 6061-T651 ASSN STD SINGLE MATERIAL RESPONSE
•
MATERIAL: ALUMINUM ALLOY
•
ATTACHMENT METHOD: BOLTS
TECHNICAL CHARACTERISTICS
MATERIAL DOCUMENT AND CLASSIFICATIONASTM-B211 6061-T651 ASSN STD SINGLE MATERIAL RESPONSE
SPECIAL FEATURESUSED ON VALVE, SPECIAL SIZE P/N 21368
END ITEM IDENTIFICATIONSEAWOLF CLASS SSN
MATERIALALUMINUM ALLOY
ATTACHMENT METHODBOLTS
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 1
21368 FIND 2Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)Demilitarization required — mutilation
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FREQUENTLY ASKED QUESTIONS
What is 21368-1003-1?
21368-1003-1 is a CAP,VALVE.
What parts can replace 21368-1003-1?
There is 1 known substitute for 21368-1003-1: 21368 FIND 2. Substitute compatibility should be verified for your specific system.
What is the NSN for 21368-1003-1?
21368-1003-1 is cataloged in the U.S. Government catalog under NSN 4820-01-514-9639. This indicates validated use in U.S. government and defense supply chains.
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✓ 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.