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72338 — SPRING,HELICAL,COMPRESSION

✓ Government record, cited
Kensington · ORING SEAL
PRODUCT OVERVIEW

72338: SPRING,HELICAL,COMPRESSION.

The SPRING,HELICAL,COMPRESSION is a Kensington industrial component. Key specifications include material: STEEL UNS K08500 OVERALL, coil_quantity: 9-1/4, stock_diameter: 0.063 INCHES NOMINAL IN, inside_diameter: 0.849 INCHES NOMINAL IN, style_designator: CYLINDRICAL, spring_free_length: 4.000 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5331-01-381-1206, 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
72338
NSN: 5331-01-381-1206
NIINs: 013811206, 015086340
FSC: 5331 — O-ring
CAGE: 35795 — LESLIE CONTROLS, INC. DBA LESLIE CONTROLS INC (USA)
SPECIFICATIONS
materialSTEEL UNS K08500 OVERALL
coil_quantity9-1/4
stock_diameter0.063 INCHES NOMINAL IN
inside_diameter0.849 INCHES NOMINAL IN
style_designatorCYLINDRICAL
spring_free_length4.000 INCHES NOMINAL IN
spring_solid_length0.580 INCHES NOMINAL IN
end_item_identificationTRAINING AIRCRAFT, T-6A, CENTURY SPRING CORP A
spring_free_outside_diameter0.975 INCHES NOMINAL IN
NSN5331-01-381-1206
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 72338 MFR: Kensington ⚠ 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
SUBSTITUTES & CROSS-REFERENCES 2
N-634 PC NO 71Reference document
Same NSN cross-reference
Reference document — Secondary reference
39826274Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 72338?
72338 is a SPRING,HELICAL,COMPRESSION manufactured by Kensington.
What parts can replace 72338?
There are 2 known substitutes for 72338: N-634 PC NO 71, 39826274. Substitute compatibility should be verified for your specific system.
What is the NSN for 72338?
72338 is cataloged in the U.S. Government catalog under NSN 5331-01-381-1206. 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.