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SIZE53 — CAP-PLUG,PROTECTIVE,DUST AND MOI

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

SIZE53: CAP-PLUG,PROTECTIVE,DUST AND MOI.

CAP-PLUG,PROTECTIVE,DUST AND MOI. Key specifications include material: PLASTIC, length_under_shoulder: 0.750 INCHES NOMINAL IN, open_end_inside_diameter: 3.078 INCHES NOMINAL IN, closed_end_overall_diameter: 2.995 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-290-7229, 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
SIZE53
NSN: 5340-00-290-7229
FSC: 5340 — Hardware, Commercial
CAGE: 95760 — PROTECTIVE CLOSURES CO INC (USA)
SPECIFICATIONS
materialPLASTIC
length_under_shoulder0.750 INCHES NOMINAL IN
open_end_inside_diameter3.078 INCHES NOMINAL IN
closed_end_overall_diameter2.995 INCHES NOMINAL IN
NSN5340-00-290-7229
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: SIZE53 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
•
CLOSED END OVERALL DIAMETER: 2.995 INCHES NOMINAL IN
•
LENGTH UNDER SHOULDER: 0.750 INCHES NOMINAL IN
•
OPEN END INSIDE DIAMETER: 3.078 INCHES NOMINAL IN
•
MATERIAL: PLASTIC
TECHNICAL CHARACTERISTICS
CLOSED END OVERALL DIAMETER2.995 INCHES NOMINAL IN
LENGTH UNDER SHOULDER0.750 INCHES NOMINAL IN
OPEN END INSIDE DIAMETER3.078 INCHES NOMINAL IN
MATERIALPLASTIC
SUBSTITUTES & CROSS-REFERENCES 4
N120WW53Reference document
Same NSN cross-reference
Reference document — Secondary reference
75917-55X1PC7Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
TYPE1SIZE51Reference document
Same NSN cross-reference
Reference document — Identification reference
MILC52078Reference document
Same NSN cross-reference
Reference document — Identification reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is SIZE53?
SIZE53 is a CAP-PLUG,PROTECTIVE,DUST AND MOI.
What parts can replace SIZE53?
There are 4 known substitutes for SIZE53: N120WW53, 75917-55X1PC7, TYPE1SIZE51 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for SIZE53?
SIZE53 is cataloged in the U.S. Government catalog under NSN 5340-00-290-7229. This indicates validated use in U.S. government and defense supply chains.
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