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Technical Data Sheet
PartsTable / COMPONENT / 5340002907381
5340002907381 ✓ 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 BUCKLE is a the manufacturer industrial component. Key specifications include color: BLACK, insignia: NOT INCLUDED, material: STEEL OVERALL, overall_width: 1.560 INCHES NOMINAL IN, overall_length: 1.690 INCHES NOMINAL IN, enameled_feature: INCLUDED. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-290-7381, 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
5340002907381
NSN: 5340-00-290-7381
FSC: 5340
CAGE: A00AM — E.C.A ETABLISSEMENT CENTRAL DES APPROVISIONNEMENTS DES FORCES ARMEES ROYALES
SPECIFICATIONS
colorBLACK
insigniaNOT INCLUDED
materialSTEEL OVERALL
overall_width1.560 INCHES NOMINAL IN
overall_length1.690 INCHES NOMINAL IN
enameled_featureINCLUDED
surface_treatmentPHOSPHATE
buckle_style_designatorCENTER NOTHCED BAR-OFFSET
strap_accommodation_width1.000 INCHES NOMINAL IN
nondefinitive_spec/std_data3 TYPE AND 3 CLASS
NSN5340-00-290-7381
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 5340002907381 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
•
SURFACE TREATMENT: PHOSPHATE
•
NONDEFINITIVE SPEC/STD DATA: 3 TYPE AND 3 CLASS
•
MATERIAL: STEEL OVERALL
•
INSIGNIA: NOT INCLUDED
•
STRAP ACCOMMODATION WIDTH: 1.000 INCHES NOMINAL IN
•
ENAMELED FEATURE: INCLUDED
•
BUCKLE STYLE DESIGNATOR: CENTER NOTHCED BAR-OFFSET
•
COLOR: BLACK
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE TREATMENTPHOSPHATE
NONDEFINITIVE SPEC/STD DATA3 TYPE AND 3 CLASS
MATERIALSTEEL OVERALL
INSIGNIANOT INCLUDED
STRAP ACCOMMODATION WIDTH1.000 INCHES NOMINAL IN
ENAMELED FEATUREINCLUDED
BUCKLE STYLE DESIGNATORCENTER NOTHCED BAR-OFFSET
COLORBLACK
OVERALL WIDTH1.560 INCHES NOMINAL IN
OVERALL LENGTH1.690 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
MILB543TY2STYLE3CLASS3SIZE5-8Interchangeable
interchangeable cross-reference
interchangeable
MIL-B-543Interchangeable
interchangeable cross-reference
interchangeable
AS4842/1Interchangeable
interchangeable cross-reference
interchangeable
AN816-4Interchangeable
interchangeable cross-reference
interchangeable
476 686Interchangeable
interchangeable cross-reference
interchangeable
MS51944-3Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 5340002907381?
5340002907381 is a BUCKLE.
What parts can replace 5340002907381?
There are 18 known substitutes for 5340002907381: MILB543TY2STYLE3CLASS3SIZE5-8, MIL-B-543, AS4842/1 and 15 more. Substitute compatibility should be verified for your specific system.
Is 5340002907381 still available?
5340002907381 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