Washer, Flat5310-01-666-4956

NSN 5310-01-666-4956 · NIIN 016664956 · Part number 43356-10

Ancra International Llc · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 31272

Government record, cited

NSN 5310-01-666-4956 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-666-4956. Manufacturer of record part number: 43356-10.

Also searched as 5310-01-666-4956 · 5310016664956 · NIIN 016664956 · 01-666-4956 · FSC 5310 Nuts and Washers · CAGE 31272 · 43356-10

Nearby stock numbers ← 5310-01-666-4954 Washer, Flat · 5310-01-666-4962 Nut, Self-Locking, Plate →

5310-01-666-4956 — Nuts and Washers

Features

Washer,flat — FSC 5310
Material: STEEL OVERALL
1 manufacturer part number on file
Manufacturer of record: Ancra International Llc

Identification

NSN: 5310-01-666-4956
NIIN: 016664956
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: 43356-10
Manufacturer: Ancra International Llc

General Description

The Washer,flat, cataloged under National Stock Number 5310-01-666-4956, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Ancra International Llc. 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	5310-01-666-4956
Primary Part Number	43356-10
Item Name	Washer,flat
FSC / FSG	5310 / 53 — Nuts and Washers
Manufacturer	Ancra International Llc
Status	ACTIVE
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
43356-10 PRIMARY	Ancra International Llc (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 5310-01-666-4956?

NSN 5310-01-666-4956 is a Washer,flat, manufactured by Ancra International Llc, classified under FSC 5310, Nuts and Washers. Status: active.

What part numbers are listed for NSN 5310-01-666-4956?

NSN 5310-01-666-4956 has 1 manufacturer part number on file: 43356-10 (Ancra International Llc).

What are the specifications of 43356-10?

Key specifications for 43356-10: Special Features: 41L40/42 STEEL; Part Name Assigned by Controlling Agency: WASHER; Material: STEEL OVERALL. 1 specification is documented in the U.S. Government catalog.

Is NSN 5310-01-666-4956 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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