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639-02 — PARTS KIT,PRESSURE REGULATING VA

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

639-02: PARTS KIT,PRESSURE REGULATING VA.

PARTS KIT,PRESSURE REGULATING VA. Key specifications include nonsupply_items_and_quantities: VALVE DISK 1; TAMPER PROOF CAP 1. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-119-5890, 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
639-02
NSN: 5340-00-119-5890
NIINs: 001195890, 011377201
FSC: 5340 — Hardware, Commercial
CAGE: 73030 — HAMILTON SUNDSTRAND CORPORATION DBA COLLINS AEROSPACE (USA)
SPECIFICATIONS
component_quantity2
nonsupply_items_and_quantitiesVALVE DISK 1; TAMPER PROOF CAP 1
NSN5340-00-119-5890
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 639-02 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
•
END DIAMETER: 1.1000 INCHES NOMINAL IN
•
DESIGN TYPE: SOLID
•
STYLE DESIGNATOR: SEAT
•
COUNTERBORE LENGTH: 0.1670 INCHES NOMINAL IN
•
COUNTERBORE DIAMETER: 0.9960 INCHES NOMINAL IN
•
BORE DIAMETER: 0.2370 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.2500 INCHES NOMINAL IN
END DIAMETER1.1000 INCHES NOMINAL IN
DESIGN TYPESOLID
STYLE DESIGNATORSEAT
COUNTERBORE LENGTH0.1670 INCHES NOMINAL IN
COUNTERBORE DIAMETER0.9960 INCHES NOMINAL IN
SPECIAL FEATURES0.44 IN. DIA LAND EXTERNALLY CENTERED BORE; NOT CASE HARDENED IN
BORE DIAMETER0.2370 INCHES NOMINAL IN
MATERIALSTEEL
LAND HEIGHT0.0300 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 639-02?
639-02 is a PARTS KIT,PRESSURE REGULATING VA.
What is the NSN for 639-02?
639-02 is cataloged in the U.S. Government catalog under NSN 5340-00-119-5890. 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.