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B34-635 — CAP,PROTECTIVE,DUST AND MOISTURE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

B34-635: CAP,PROTECTIVE,DUST AND MOISTURE.

CAP,PROTECTIVE,DUST AND MOISTURE. Key specifications include material: RUBBER CHLOROPRENE CLASS CR, design_type: FRICTION, overall_diameter: 3.000 INCHES NOMINAL IN, special_features: BLACK IN COLOR, HARDNESS IS 60-70 DUROMETER, inside_diameter_length: 1.750 INCHES NOMINAL IN, end_item_identification: 232014525579. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-496-3031, 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
B34-635
NSN: 5340-01-496-3031
FSC: 5340 — Hardware, Commercial
CAGE: 03533 — CRANE CARRIER COMPANY, LLC (USA)
SPECIFICATIONS
materialRUBBER CHLOROPRENE CLASS CR
design_typeFRICTION
overall_diameter3.000 INCHES NOMINAL IN
special_featuresBLACK IN COLOR, HARDNESS IS 60-70 DUROMETER
inside_diameter_length1.750 INCHES NOMINAL IN
end_item_identification232014525579
opening_inside_diameter_for_which_designed1.750 INCHES NOMINAL IN
NSN5340-01-496-3031
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: B34-635 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
•
OVERALL DIAMETER: 3.000 INCHES NOMINAL IN
•
OPENING INSIDE DIAMETER FOR WHICH DESIGNED: 1.750 INCHES NOMINAL IN
•
MATERIAL: RUBBER CHLOROPRENE CLASS CR
•
INSIDE DIAMETER LENGTH: 1.750 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
DESIGN TYPEFRICTION
OVERALL DIAMETER3.000 INCHES NOMINAL IN
OPENING INSIDE DIAMETER FOR WHICH DESIGNED1.750 INCHES NOMINAL IN
SPECIAL FEATURESBLACK IN COLOR, HARDNESS IS 60-70 DUROMETER
END ITEM IDENTIFICATION232014525579
MATERIALRUBBER CHLOROPRENE CLASS CR
INSIDE DIAMETER LENGTH1.750 INCHES NOMINAL IN
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 B34-635?
B34-635 is a CAP,PROTECTIVE,DUST AND MOISTURE.
What is the NSN for B34-635?
B34-635 is cataloged in the U.S. Government catalog under NSN 5340-01-496-3031. 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.