666991 — HOIST-TRAIN MECHANISM,SONAR

✓ Government record, cited

Legrand · MRO · MRO_GENERAL

PRODUCT OVERVIEW

666991: HOIST-TRAIN MECHANISM,SONAR.

The HOIST-TRAIN MECHANISM,SONAR is a Legrand industrial component. Key specifications include material: RUBBER SYNTHETIC WEAR SURFACE, pad_shape: RECTANGULAR, thread_size: 3/8-16, overall_width: 3.125 INCHES NOMINAL IN, overall_length: 4.625 INCHES NOMINAL IN, thread_location: EXTERNAL. This part is cataloged in the U.S.

Government catalog under NSN 5840-00-695-0188, 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→ 666991

NSN: 5840-00-695-0188
NIINs: 006950188, 007762844, 013020469
FSC: 5840 — Radar Equipment, Except Airborne
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)

SPECIFICATIONS

material	RUBBER SYNTHETIC WEAR SURFACE
pad_shape	RECTANGULAR
thread_size	3/8-16
overall_width	3.125 INCHES NOMINAL IN
overall_length	4.625 INCHES NOMINAL IN
thread_location	EXTERNAL
thread_direction	RIGHT-HAND
attachment_method	THREADED
overall_thickness	0.562 INCHES NOMINAL IN
screw_thread_series_designator	UNIFIED NATIONAL COARSE (UNC)
general_characteristics_item_description	HOIST-TRAIN MECHANISM SONAR
NSN	5840-00-695-0188

COMPONENT DIAGRAM

SUBSTITUTES & CROSS-REFERENCES 1

B12540-4Reference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Semi-active item — no replacement plannedDemilitarization required — complete disassembly

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FREQUENTLY ASKED QUESTIONS

What is 666991?

666991 is a HOIST-TRAIN MECHANISM,SONAR manufactured by Legrand. It is classified as a MRO (MRO_GENERAL).

What parts can replace 666991?

There is 1 known substitute for 666991: B12540-4. Substitute compatibility should be verified for your specific system.

What is the NSN for 666991?

666991 is cataloged in the U.S. Government catalog under NSN 5840-00-695-0188. This indicates validated use in U.S. government and defense supply chains.

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666991 — HOIST-TRAIN MECHANISM,SONAR

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