PartsTable
Technical Data Sheet
Download PDF

21837 FIND 27 — RETAINER,HELICAL COMPRESSION SPR

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

21837 FIND 27: RETAINER,HELICAL COMPRESSION SPR.

RETAINER,HELICAL COMPRESSION SPR. Key specifications include material: ALUMINUM ALLOY 6061, style_designator: PARALLEL, end_item_identification: VALVE ASSEMBLY SIZE IV AND I. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-519-6825, 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
21837 FIND 27
NSN: 5340-01-519-6825
FSC: 5340 — Hardware, Commercial
CAGE: 78062 — SARGENT AEROSPACE & DEFENSE, LLC DBA SARGENT CONTROLS & AEROSPACE DIV SARGENT CONTROLS & AEROSPACE (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 6061
style_designatorPARALLEL
end_item_identificationVALVE ASSEMBLY SIZE IV AND I
NSN5340-01-519-6825
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 21837 FIND 27 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
STYLE DESIGNATOR: PARALLEL
•
MATERIAL: ALUMINUM ALLOY 6061
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORPARALLEL
END ITEM IDENTIFICATIONVALVE ASSEMBLY SIZE IV AND I
MATERIALALUMINUM ALLOY 6061
OTHER ITEMS IN FSC 5340 — Hardware, Commercial
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068 5340-00-000-0132 5340-00-000-8150 5340-00-001-1251 5340-00-001-1264 5340-00-001-1265 5340-00-001-1266 5340-00-001-1275
SUBSTITUTES & CROSS-REFERENCES 3
21152 FIND 5Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
21105 FIND 45Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
21147-001 FIND NO 9Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
Ready to buy 21837 FIND 27?
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 21837 FIND 27?
21837 FIND 27 is a RETAINER,HELICAL COMPRESSION SPR.
What parts can replace 21837 FIND 27?
There are 3 known substitutes for 21837 FIND 27: 21152 FIND 5, 21105 FIND 45, 21147-001 FIND NO 9. Substitute compatibility should be verified for your specific system.
What is the NSN for 21837 FIND 27?
21837 FIND 27 is cataloged in the U.S. Government catalog under NSN 5340-01-519-6825. 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 — 21837 FIND 27

✓ 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.