Washer, Flat5310-01-659-4556

NSN 5310-01-659-4556 · NIIN 016594556 · Part number 23003-4

Hydraulics International, Inc. Dba Hydraulics International Inc · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 56529

Government record, cited

NSN 5310-01-659-4556 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-659-4556. Manufacturer of record part number: 23003-4.

Also searched as 5310-01-659-4556 · 5310016594556 · NIIN 016594556 · 01-659-4556 · FSC 5310 Nuts and Washers · CAGE 56529 · 23003-4

Nearby stock numbers ← 5310-01-659-4539 Nut, Plain, Round · 5310-01-659-4687 Nut, Plain, Extended Washer, Hexago →

5310-01-659-4556 — Nuts and Washers

Features

Washer,flat — FSC 5310
1 manufacturer part number on file
Manufacturer of record: Hydraulics International, Inc. Dba Hydraulics International Inc

Identification

NSN: 5310-01-659-4556
NIIN: 016594556
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: 23003-4
Manufacturer: Hydraulics International, Inc. Dba Hydraulics International Inc

General Description

The Washer,flat, cataloged under National Stock Number 5310-01-659-4556, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Hydraulics International, Inc. Dba Hydraulics International Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	5310-01-659-4556
Primary Part Number	23003-4
Item Name	Washer,flat
FSC / FSG	5310 / 53 — Nuts and Washers
Manufacturer	Hydraulics International, Inc. Dba Hydraulics International Inc
Status	ACTIVE

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
23003-4 PRIMARY	Hydraulics International, Inc. Dba Hydraulics International Inc (USA)

Reference documents

Reference	Meaning
23003-4	5/9 Secondary reference Hydraulics International, Inc. Dba Use CAGE Code 56529 for Cataloging

Frequently Asked Questions

What is NSN 5310-01-659-4556?

NSN 5310-01-659-4556 is a Washer,flat, manufactured by Hydraulics International, Inc. Dba Hydraulics International Inc, classified under FSC 5310, Nuts and Washers. Status: active.

What part numbers are listed for NSN 5310-01-659-4556?

NSN 5310-01-659-4556 has 1 manufacturer part number on file: 23003-4 (Hydraulics International, Inc. Dba Hydraulics International Inc).

What are the specifications of 23003-4?

Key specifications for 23003-4: End Item Identification: 3655-01-545-2483. 0 specifications are documented in the U.S. Government catalog.

Is NSN 5310-01-659-4556 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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