PartsTable TECHNICAL DATA SHEET

NSN 5310-01-666-2264Government record, cited

Washer, Lock5310-01-666-2264

NSN 5310-01-666-2264 · NIIN 016662264 · Part number 06100-08156-101

Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 78286

Government record, cited

NSN 5310-01-666-2264 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-666-2264. Manufacturer of record part number: 06100-08156-101.

Also searched as 5310-01-666-2264 · 5310016662264 · NIIN 016662264 · 01-666-2264 · FSC 5310 Nuts and Washers · CAGE 78286 · 06100-08156-101

Nearby stock numbers ← 5310-01-666-2217 Nut, Self-Locking, Plate · 5310-01-666-2290 Nut, Plain, Hexagon →

5310-01-666-2264 — Nuts and Washers

Features

Washer,lock — FSC 5310
Criticality Code Justification: FEAT
1 manufacturer part number on file
Manufacturer of record: Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp

Identification

NSN: 5310-01-666-2264
NIIN: 016662264
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: 06100-08156-101
Manufacturer: Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp

General Description

The Washer,lock, cataloged under National Stock Number 5310-01-666-2264, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	5310-01-666-2264
Primary Part Number	06100-08156-101
Item Name	Washer,lock
FSC / FSG	5310 / 53 — Nuts and Washers
Manufacturer	Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp
Status	ACTIVE
Criticality Code Justification	FEAT

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)
Criticality Code	Y

Cross-Reference Index

Part Number	Manufacturer
06100-08156-101 PRIMARY	Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA)

No interchangeability data on file.

Other items in FSC 5310 — Nuts and Washers

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

5310-00-000-0040

5310-00-000-0040 · Item name not on file

5310-00-000-0077

NUT,PLAIN,ROUND

5310-00-000-0079

WASHER,FLAT

5310-00-000-0079

WASHER,FLAT

5310-00-000-1146

5310-00-000-1146 · Item name not on file

5310-00-000-3815

5310-00-000-3815 · Item name not on file

5310-00-000-4532

5310-00-000-4532 · Item name not on file

5310-00-000-4540

5310-00-000-4540 · Item name not on file

Frequently Asked Questions

What is NSN 5310-01-666-2264?

NSN 5310-01-666-2264 is a Washer,lock, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 5310, Nuts and Washers. Status: active.

What part numbers are listed for NSN 5310-01-666-2264?

NSN 5310-01-666-2264 has 1 manufacturer part number on file: 06100-08156-101 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).

What are the specifications of 06100-08156-101?

Key specifications for 06100-08156-101: Criticality Code Justification: FEAT; Special Features: CRITICAL APPLICATION ITEM (CAI); PART OF ROTOR SYSTEM (HELO ONLY) MAIN ROTOR HEAD; Part Name Assigned by Controlling Agency: WASHER LOCK; End Item Identification: CH-53K SIKORSKY HEAVY LIFT HELICOPTER. 1 specification is documented in the U.S. Government catalog.

Is NSN 5310-01-666-2264 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.

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