PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 8528877
8528877 ✓ Verified by PartsTable
— · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

CAP-PLUG,PROTECTIVE,DUST AND MOI. Key specifications include material: PLASTIC, length_under_shoulder: 0.750 INCHES NOMINAL IN, open_end_inside_diameter: 1.027 INCHES NOMINAL IN, closed_end_overall_diameter: 0.094 INCHES NOMINAL IN, nondefinitive_spec/std_data: 1 TYPE AND 22 SIZE, departure_from_cited_document: MIL-C-52078. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-290-7215, 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
8528877
NSN: 5340-00-290-7215
FSC: 5340
CAGE: 18876 — US ARMY AVIATION AND MISSILE COMMAND (USA)
SPECIFICATIONS
materialPLASTIC
length_under_shoulder0.750 INCHES NOMINAL IN
open_end_inside_diameter1.027 INCHES NOMINAL IN
closed_end_overall_diameter0.094 INCHES NOMINAL IN
nondefinitive_spec/std_data1 TYPE AND 22 SIZE
departure_from_cited_documentMIL-C-52078
NSN5340-00-290-7215
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 8528877 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
•
MATERIAL: PLASTIC
•
OPEN END INSIDE DIAMETER: 1.027 INCHES NOMINAL IN
•
DEPARTURE FROM CITED DOCUMENT: MIL-C-52078
•
LENGTH UNDER SHOULDER: 0.750 INCHES NOMINAL IN
•
CLOSED END OVERALL DIAMETER: 0.094 INCHES NOMINAL IN
•
NONDEFINITIVE SPEC/STD DATA: 1 TYPE AND 22 SIZE
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALPLASTIC
OPEN END INSIDE DIAMETER1.027 INCHES NOMINAL IN
DEPARTURE FROM CITED DOCUMENTMIL-C-52078
LENGTH UNDER SHOULDER0.750 INCHES NOMINAL IN
CLOSED END OVERALL DIAMETER0.094 INCHES NOMINAL IN
NONDEFINITIVE SPEC/STD DATA1 TYPE AND 22 SIZE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 25
MILC52078Upgraded Successor
successor cross-reference
successor
RU51089Upgraded Successor
successor cross-reference
successor
28901-17Upgraded Successor
successor cross-reference
successor
21Upgraded Successor
successor cross-reference
successor
MIL-C-5501Upgraded Successor
successor cross-reference
successor
57AUpgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
Ready to buy 8528877?
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 8528877?
8528877 is a CAP-PLUG,PROTECTIVE,DUST AND MOI.
What parts can replace 8528877?
There are 25 known substitutes for 8528877: MILC52078, RU51089, 28901-17 and 22 more. Substitute compatibility should be verified for your specific system.
Is 8528877 still available?
8528877 is currently cancelled.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 8528877

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026