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750021 — FASTENER,CYLINDER,SPRING LOADED

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

750021: FASTENER,CYLINDER,SPRING LOADED.

FASTENER,CYLINDER,SPRING LOADED. Key specifications include width: 21.000 INCHES NOMINAL IN, length: 125.000 FEET NOMINAL FT, special_features: CREPED SURFACE; 3-INCH DIAMETER ROLL; BLEACHED KRAFT; WET-STRENGTH TREATED; ABSORBENT; 12 ROLLS PER PACKAGE. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-739-9482, 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
750021
NSN: 5340-00-739-9482
NIINs: 007399482, 011738848
FSC: 5340 — Hardware, Commercial
CAGE: 57733 — STEWART-WARNER CORPORATION (USA)
SPECIFICATIONS
width21.000 INCHES NOMINAL IN
length125.000 FEET NOMINAL FT
special_featuresCREPED SURFACE; 3-INCH DIAMETER ROLL; BLEACHED KRAFT; WET-STRENGTH TREATED; ABSORBENT; 12 ROLLS PER PACKAGE
NSN5340-00-739-9482
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 750021 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
•
HANDLE TYPE: TEE
•
MOUNTING HOLE QUANTITY: 2
•
FSC APPLICATION DATA: VEHICULAR HOOD
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MOUNTING END TYPE: PLATE
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LENGTH: 3.563 INCHES NOMINAL EFFECTIVE FREE LENGTH IN
•
MOUNTING POSITION FOR WHICH DESIGNED: VERTICAL
•
DIAMETER: 0.281 INCHES NOMINAL MOUNTING HOLE IN
•
ENGAGING END TYPE: HOOK
TECHNICAL CHARACTERISTICS
HANDLE TYPETEE
MOUNTING HOLE QUANTITY2
FSC APPLICATION DATAVEHICULAR HOOD
MOUNTING END TYPEPLATE
LENGTH3.563 INCHES NOMINAL EFFECTIVE FREE LENGTH IN
MOUNTING POSITION FOR WHICH DESIGNEDVERTICAL
DIAMETER0.281 INCHES NOMINAL MOUNTING HOLE IN
ENGAGING END TYPEHOOK
FEATURES PROVIDEDADJUSTABLE
SPECIAL FEATURESPAINTED FEATURE-NOT INCLUDED;EFFECT. EXTENDED LGTH 4.688 IN. NOM;CATCH-NOT INCLUDED IN
SUBSTITUTES & CROSS-REFERENCES 1
C2199-48Reference 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 750021?
750021 is a FASTENER,CYLINDER,SPRING LOADED.
What parts can replace 750021?
There is 1 known substitute for 750021: C2199-48. Substitute compatibility should be verified for your specific system.
What is the NSN for 750021?
750021 is cataloged in the U.S. Government catalog under NSN 5340-00-739-9482. 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.