PartsTable
Technical Data Sheet
PartsTable / COMPONENT / DD-4639 REF NO 4
DD-4639 REF NO 4 ✓ 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 RETAINER,PACKING is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 922 OVERALL, material_document_and_classification: ASTM B61 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-274-0069, 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
DD-4639 REF NO 4
NSN: 5330-01-274-0069
FSC: 5330
CAGE: 53424 — CUNICO CORPORATION (USA)
SPECIFICATIONS
materialCOPPER ALLOY 922 OVERALL
material_document_and_classificationASTM B61 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5330-01-274-0069
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: DD-4639 REF NO 4 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 DOCUMENT AND CLASSIFICATION: ASTM B61 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
MATERIAL: COPPER ALLOY 922 OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONASTM B61 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALCOPPER ALLOY 922 OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
9091Interchangeable
interchangeable cross-reference
interchangeable
9092Interchangeable
interchangeable cross-reference
interchangeable
5190Interchangeable
interchangeable cross-reference
interchangeable
8818010-2Interchangeable
interchangeable cross-reference
interchangeable
N1B42Interchangeable
interchangeable cross-reference
interchangeable
AR17.6Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy DD-4639 REF NO 4?
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 DD-4639 REF NO 4?
DD-4639 REF NO 4 is a RETAINER,PACKING.
What parts can replace DD-4639 REF NO 4?
There are 13 known substitutes for DD-4639 REF NO 4: 9091, 9092, 5190 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for DD-4639 REF NO 4?
DD-4639 REF NO 4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-274-0069. 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 — DD-4639 REF NO 4

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