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Technical Data Sheet
PartsTable / COMPONENT / 1/4-3
1/4-3 ✓ 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 1/4-3 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-200-7137, 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
1/4-3
NSN: 5340-00-200-7137
FSC: 5340
CAGE: 85480 — BRADY UNITED STATES (USA)
SPECIFICATIONS
Part Number1/4-3
NSN5340-00-200-7137
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 1/4-3 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
•
STYLE DESIGNATOR: SINGLE LOOP
•
MATERIAL: PLASTIC POLYHEXAMETHYLENE AMIDE OVERALL
•
SUPPLEMENTARY FEATURES: COLOR NATURAL /LIGHT CREAM/
•
LOOP INSIDE DIAMETER: 0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN
•
APPLICATION/FUNCTION: USED AS CABLE CLAMP
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-M-20693,COMP A,TYPE 1 MIL SPEC SINGLE MATERIAL RESPONSE OR ZYTEL 101 MFR REF SINGLE MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORSINGLE LOOP
STYLE DESIGNATORSINGLE LOOP
MATERIALPLASTIC POLYHEXAMETHYLENE AMIDE OVERALL
SUPPLEMENTARY FEATURESCOLOR NATURAL /LIGHT CREAM/
MATERIALPLASTIC POLYHEXAMETHYLENE AMIDE OVERALL
LOOP INSIDE DIAMETER0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN
APPLICATION/FUNCTIONUSED AS CABLE CLAMP
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-M-20693,COMP A,TYPE 1 MIL SPEC SINGLE MATERIAL RESPONSE OR ZYTEL 101 MFR REF SINGLE MATERIAL RESPONSE OVERALL
OVERALL WIDTH0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM IN
MATERIAL THICKNESS0.031 INCHES MINIMUM AND 0.041 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
A05764Upgraded Successor
successor cross-reference
successor
642AS2504-4Upgraded Successor
successor cross-reference
successor
0356742Upgraded Successor
successor cross-reference
successor
143Upgraded Successor
successor cross-reference
successor
F3NY-250NACInterchangeable
Same NIIN cross-reference
interchangeable
214-1043P3Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1/4-3?
1/4-3 is a 1/4-3.
What parts can replace 1/4-3?
There are 6 known substitutes for 1/4-3: A05764, 642AS2504-4, 0356742 and 3 more. Substitute compatibility should be verified for your specific system.
Is 1/4-3 still available?
1/4-3 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026