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757953 — CAP,PROTECTIVE,DUST AND MOISTURE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

757953: CAP,PROTECTIVE,DUST AND MOISTURE.

CAP,PROTECTIVE,DUST AND MOISTURE. Key specifications include material: CELLULOSE, design_type: FRICTION, special_features: 0.040 IN. THICK CELLULOSE SHEET TO BE VACUUM FORMED OVER DISC,P/N 757955 IN, round_cap_outside_surface_condition: SMOOTH, material_document_and_classification: L-P-349, GRADE S2 FED SPEC SINGLE MATERIAL RESPONSE, tube_outside_diameter_for_which_designed: 3.260 INCHES MINIMUM AND 3.280 INCHES MAXIMUM IN.

This part is cataloged in the U.S. Government catalog under NSN 5340-01-353-1937, 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
757953
NSN: 5340-01-353-1937
FSC: 5340 — Hardware, Commercial
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialCELLULOSE
design_typeFRICTION
special_features0.040 IN. THICK CELLULOSE SHEET TO BE VACUUM FORMED OVER DISC,P/N 757955 IN
round_cap_outside_surface_conditionSMOOTH
material_document_and_classificationL-P-349, GRADE S2 FED SPEC SINGLE MATERIAL RESPONSE
tube_outside_diameter_for_which_designed3.260 INCHES MINIMUM AND 3.280 INCHES MAXIMUM IN
NSN5340-01-353-1937
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 757953 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
•
DESIGN TYPE: FRICTION
•
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED: 3.260 INCHES MINIMUM AND 3.280 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: L-P-349, GRADE S2 FED SPEC SINGLE MATERIAL RESPONSE
•
MATERIAL: CELLULOSE
•
ROUND CAP OUTSIDE SURFACE CONDITION: SMOOTH
TECHNICAL CHARACTERISTICS
DESIGN TYPEFRICTION
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED3.260 INCHES MINIMUM AND 3.280 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONL-P-349, GRADE S2 FED SPEC SINGLE MATERIAL RESPONSE
SPECIAL FEATURES0.040 IN. THICK CELLULOSE SHEET TO BE VACUUM FORMED OVER DISC,P/N 757955 IN
MATERIALCELLULOSE
ROUND CAP OUTSIDE SURFACE CONDITIONSMOOTH
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

No substitute or cross-reference records for this part.

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 757953?
757953 is a CAP,PROTECTIVE,DUST AND MOISTURE.
What is the NSN for 757953?
757953 is cataloged in the U.S. Government catalog under NSN 5340-01-353-1937. This indicates validated use in U.S. government and defense supply chains.
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