756-4374-1 — COUPLER

✓ Government record, cited

— · MRO · MRO_GENERAL

PRODUCT OVERVIEW

756-4374-1: COUPLER.

The COUPLER is a the manufacturer industrial component. Key specifications include hole_diameter: 0.281 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, hardness_rating: 45.0 SHORE DUROMETER A MINIMUM AND 55.0 SHORE DUROMETER A MAXIMUM OVERALL, outside_diameter: 4.125 INCHES NOMINAL IN, special_features: 0.312 IN. RADIUS KEYWAY ON PERIPHERY OF APERTURE SPACED 45 DEG BELOW BOLT HOLE LOCATED AT 9 O CLOCK IN, style_designator: CIRCULAR, aperture_diameter: 1.750 INCHES NOMINAL IN.

This part is cataloged in the U.S. Government catalog under NSN 5841-00-563-1377, 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

MRO→ MRO_GENERAL→ 756-4374-1

NSN: 5841-00-563-1377
FSC: 5841 — Radar Equipment, Airborne
CAGE: 11530 — LOCKHEED MARTIN CORPORATION DIV LOCKHEED MARTIN INFORMATION SYSTEMS & GLOBAL SOLUTIONS (USA)

SPECIFICATIONS

material	RUBBER ETHYLENE-PROPYLENE CLASS EPM OR RUBBER BUTADIENE-STYRENE CLASS SBR OR RUBBER ISOBUTYLENE-ISOPRENE CLASS IIR OVERALL
hole_diameter	0.281 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
hardness_rating	45.0 SHORE DUROMETER A MINIMUM AND 55.0 SHORE DUROMETER A MAXIMUM OVERALL
outside_diameter	4.125 INCHES NOMINAL IN
special_features	0.312 IN. RADIUS KEYWAY ON PERIPHERY OF APERTURE SPACED 45 DEG BELOW BOLT HOLE LOCATED AT 9 O CLOCK IN
style_designator	CIRCULAR
aperture_diameter	1.750 INCHES NOMINAL IN
bolt_hole_quantity	4
bolt_circle_diameter	3.500 INCHES NOMINAL IN
supplementary_features	NHA PN 98370; CONTROLLING AGENCY NOMENCLATURE SPRING RANGE MARKER
end_item_identification	BILGE OIL ALARM
cross-sectional_thickness	0.062 INCHES NOMINAL IN
NSN	5841-00-563-1377

COMPONENT DIAGRAM

SUBSTITUTES & CROSS-REFERENCES 4

756-4335Reference document

Same NSN cross-reference

Reference document — Secondary reference

756-4374Reference document

Same NSN cross-reference

Reference document — Secondary reference

31C8233Reference document

Same NSN cross-reference

Reference document — Secondary reference

20098Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Normally procured from the manufacturer (OEM)Demilitarization required — complete disassembly

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FREQUENTLY ASKED QUESTIONS

What is 756-4374-1?

756-4374-1 is a COUPLER. It is classified as a MRO (MRO_GENERAL).

What parts can replace 756-4374-1?

There are 4 known substitutes for 756-4374-1: 756-4335, 756-4374, 31C8233 and 1 more. Substitute compatibility should be verified for your specific system.

What is the NSN for 756-4374-1?

756-4374-1 is cataloged in the U.S. Government catalog under NSN 5841-00-563-1377. This indicates validated use in U.S. government and defense supply chains.

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756-4374-1 — COUPLER

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