PartsTable
Technical Data Sheet
Download PDF

831528-00 — CAP,PROTECTIVE,DUST AND MOISTURE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

831528-00: CAP,PROTECTIVE,DUST AND MOISTURE.

CAP,PROTECTIVE,DUST AND MOISTURE. Key specifications include material: PLASTIC, POLYETHYLENE (PP), design_type: FRICTION, overall_diameter: 0.910 INCHES MAXIMUM IN, round_cap_outside_surface_condition: SMOOTH, tube_outside_diameter_for_which_designed: 0.649 INCHES MAXIMUM IN, opening_inside_diameter_for_which_designed: 0.725 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-821-9839, 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
831528-00
NSN: 5340-00-821-9839
FSC: 5340 — Hardware, Commercial
CAGE: 32345 — DEFENSE REDUCTION AGENCY (USA)
SPECIFICATIONS
materialPLASTIC, POLYETHYLENE (PP)
design_typeFRICTION
overall_diameter0.910 INCHES MAXIMUM IN
round_cap_outside_surface_conditionSMOOTH
tube_outside_diameter_for_which_designed0.649 INCHES MAXIMUM IN
opening_inside_diameter_for_which_designed0.725 INCHES MAXIMUM IN
NSN5340-00-821-9839
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 831528-00 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: 0.910 INCHES MAXIMUM IN
•
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED: 0.649 INCHES MAXIMUM IN
•
OPENING INSIDE DIAMETER FOR WHICH DESIGNED: 0.725 INCHES MAXIMUM IN
•
MATERIAL: PLASTIC, POLYETHYLENE (PP)
•
ROUND CAP OUTSIDE SURFACE CONDITION: SMOOTH
TECHNICAL CHARACTERISTICS
DESIGN TYPEFRICTION
OVERALL DIAMETER0.910 INCHES MAXIMUM IN
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED0.649 INCHES MAXIMUM IN
OPENING INSIDE DIAMETER FOR WHICH DESIGNED0.725 INCHES MAXIMUM IN
MATERIALPLASTIC, POLYETHYLENE (PP)
ROUND CAP OUTSIDE SURFACE CONDITIONSMOOTH
SUBSTITUTES & CROSS-REFERENCES 7
10-70506-12Reference document
Same NSN cross-reference
Reference document — Secondary reference
025-0478-000Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
G243640-19Reference document
Same NSN cross-reference
Reference document — Secondary reference
00-795-4723Reference document
Same NSN cross-reference
Reference document — Informative reference only
P31102Reference document
Same NSN cross-reference
Reference document — Secondary reference
5340PL1878698Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
Ready to buy 831528-00?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 831528-00?
831528-00 is a CAP,PROTECTIVE,DUST AND MOISTURE.
What parts can replace 831528-00?
There are 7 known substitutes for 831528-00: 10-70506-12, 025-0478-000, G243640-19 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 831528-00?
831528-00 is cataloged in the U.S. Government catalog under NSN 5340-00-821-9839. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 831528-00

✓ 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.