Washer, Lock5310-01-669-2141

NSN 5310-01-669-2141 · NIIN 016692141 · Part number A-445-111PC104

Hansome Energy Systems Inc · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 51802

Government record, cited

NSN 5310-01-669-2141 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-669-2141. Manufacturer of record part number: A-445-111PC104.

Also searched as 5310-01-669-2141 · 5310016692141 · NIIN 016692141 · 01-669-2141 · FSC 5310 Nuts and Washers · CAGE 51802 · A-445-111PC104

Nearby stock numbers ← 5310-01-669-1952 Washer, Flat · 5310-01-669-2220 Nut, Self-Locking, Hexagon →

5310-01-669-2141 — Nuts and Washers

Features

Washer,lock — FSC 5310
Surface Treatment: ZINC OVERALL
Material: STEEL OVERALL
1 manufacturer part number on file
Manufacturer of record: Hansome Energy Systems Inc

Identification

NSN: 5310-01-669-2141
NIIN: 016692141
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: A-445-111PC104
Manufacturer: Hansome Energy Systems Inc

General Description

The Washer,lock, cataloged under National Stock Number 5310-01-669-2141, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Hansome Energy Systems Inc. Government technical data includes 2 specifications, 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	5310-01-669-2141
Primary Part Number	A-445-111PC104
Item Name	Washer,lock
FSC / FSG	5310 / 53 — Nuts and Washers
Manufacturer	Hansome Energy Systems Inc
Status	ACTIVE
Surface Treatment	ZINC OVERALL
Material	STEEL OVERALL

Lifecycle & Compliance

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

Cross-Reference Index

Part Number	Manufacturer
A-445-111PC104 PRIMARY	Hansome Energy Systems Inc (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 5310-01-669-2141?

NSN 5310-01-669-2141 is a Washer,lock, manufactured by Hansome Energy Systems Inc, classified under FSC 5310, Nuts and Washers. Status: active.

What part numbers are listed for NSN 5310-01-669-2141?

NSN 5310-01-669-2141 has 1 manufacturer part number on file: A-445-111PC104 (Hansome Energy Systems Inc).

What are the specifications of A-445-111PC104?

Key specifications for A-445-111PC104: Special Features: HYDROGEN ENBRITTLEMENT RELIEF IAW ASTM B633,TYPE II,CLASS FE/ZN 5 AND A 23 HOUR BAKE AT 375 DEG F (+/-25 DEG F) WITHIN 1 HOUR AFTER PLATING IS REQUIRED DEGF; Surface Treatment: ZINC OVERALL; Part Name Assigned by Controlling Agency: 1/2 HI COLLAR;LOCKWASHER,POS.; Material: STEEL OVERALL. 2 specifications are documented in the U.S. Government catalog.

Is NSN 5310-01-669-2141 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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