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PartsTable / COMPONENT / K127957
K127957 ✓ 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 BUMPER is a the manufacturer industrial component. Key specifications include color: BLACK, material: RUBBER SYNTHETIC, hole_diameter: 0.140 INCHES NOMINAL IN, overall_height: 0.281 INCHES NOMINAL IN, style_designator: FLAT TOP COUNTERBORED, first_counterbore_depth: 0.125 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-329-5264, 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
K127957
NSN: 5340-00-329-5264
FSC: 5340
CAGE: 88818 — KEARFOTT CORPORATION DIV GUIDANCE AND NAVIGATION DIVISION (USA)
SPECIFICATIONS
colorBLACK
materialRUBBER SYNTHETIC
hole_diameter0.140 INCHES NOMINAL IN
overall_height0.281 INCHES NOMINAL IN
style_designatorFLAT TOP COUNTERBORED
first_counterbore_depth0.125 INCHES NOMINAL IN
first_counterbore_diameter0.250 INCHES NOMINAL IN
outside/top_flange_diameter0.625 INCHES NOMINAL IN
NSN5340-00-329-5264
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: K127957 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
•
COLOR: BLACK
•
FIRST COUNTERBORE DEPTH: 0.125 INCHES NOMINAL IN
•
FIRST COUNTERBORE DIAMETER: 0.250 INCHES NOMINAL IN
•
MATERIAL: RUBBER SYNTHETIC
•
HOLE DIAMETER: 0.140 INCHES NOMINAL IN
•
OUTSIDE/TOP FLANGE DIAMETER: 0.625 INCHES NOMINAL IN
•
STYLE DESIGNATOR: FLAT TOP COUNTERBORED
TECHNICAL CHARACTERISTICS (FLIS)
COLORBLACK
FIRST COUNTERBORE DEPTH0.125 INCHES NOMINAL IN
FIRST COUNTERBORE DIAMETER0.250 INCHES NOMINAL IN
MATERIALRUBBER SYNTHETIC
HOLE DIAMETER0.140 INCHES NOMINAL IN
OUTSIDE/TOP FLANGE DIAMETER0.625 INCHES NOMINAL IN
OVERALL HEIGHT0.281 INCHES NOMINAL IN
STYLE DESIGNATORFLAT TOP COUNTERBORED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
2-184Upgraded Successor
successor cross-reference
successor
2-30Upgraded Successor
successor cross-reference
successor
B107.500Interchangeable
interchangeable cross-reference
interchangeable
GGG-P-480Interchangeable
interchangeable cross-reference
interchangeable
050578Interchangeable
interchangeable cross-reference
interchangeable
10339520Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is K127957?
K127957 is a BUMPER.
What parts can replace K127957?
There are 16 known substitutes for K127957: 2-184, 2-30, B107.500 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for K127957?
K127957 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-329-5264. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026