PartsTable
Technical Data Sheet
PartsTable / COMPONENT / A547-640
A547-640 ✓ 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

The SEAL,DUST,COAX is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-086-9942, 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
A547-640
NSN: 5330-00-086-9942
FSC: 5330
CAGE: 34228 — L3 TECHNOLOGIES, INC. DIV L3 KEO (USA)
SPECIFICATIONS
general_characteristics_item_descriptionRUBBER,SYNTHETIC,MIL-R-880; 1-125 IN. LG; 0.625 IN. W; 0.625 IN. HT; TWO HOLES 0.600 IN. DISTANCE CENTER TO CENTER; EACH HOLE IS SPLIT THRU TO EDGE OF SEAL ALONG LG IN
NSN5330-00-086-9942
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A547-640 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
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: RUBBER,SYNTHETIC,MIL-R-880; 1-125 IN. LG; 0.625 IN. W; 0.625 IN. HT; TWO HOLES 0.600 IN. DISTANCE CENTER TO CENTER; EACH HOLE IS SPLIT THRU TO EDGE OF SEAL ALONG LG IN
TECHNICAL CHARACTERISTICS (FLIS)
GENERAL CHARACTERISTICS ITEM DESCRIPTIONRUBBER,SYNTHETIC,MIL-R-880; 1-125 IN. LG; 0.625 IN. W; 0.625 IN. HT; TWO HOLES 0.600 IN. DISTANCE CENTER TO CENTER; EACH HOLE IS SPLIT THRU TO EDGE OF SEAL ALONG LG IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 24
38095SInterchangeable
interchangeable cross-reference
interchangeable
375615Interchangeable
interchangeable cross-reference
interchangeable
100714Interchangeable
interchangeable cross-reference
interchangeable
B75Interchangeable
interchangeable cross-reference
interchangeable
50491Interchangeable
interchangeable cross-reference
interchangeable
411967-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy A547-640?
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 A547-640?
A547-640 is a SEAL,DUST,COAX.
What parts can replace A547-640?
There are 24 known substitutes for A547-640: 38095S, 375615, 100714 and 21 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A547-640?
A547-640 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-086-9942. This indicates validated use in U.S. government and defense supply chains.
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 — A547-640

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