Washer, Flat5310-01-554-4238

NSN 5310-01-554-4238 · NIIN 015544238 · Part number 8521860-35

Honeywell International Inc. Dba Honeywell International · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 07187

Government record, cited

NSN 5310-01-554-4238 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-554-4238. Manufacturer of record part number: 8521860-35.

Also searched as 5310-01-554-4238 · 5310015544238 · NIIN 015544238 · 01-554-4238 · FSC 5310 Nuts and Washers · CAGE 07187 · 8521860-35

Nearby stock numbers ← 5310-01-554-4173 Washer, Shouldered · 5310-01-554-4272 Washer, Seal →

5310-01-554-4238 — Nuts and Washers

Features

Washer,flat — FSC 5310
Criticality Code Justification: AGAV
1 manufacturer part number on file
Manufacturer of record: Honeywell International Inc. Dba Honeywell International

Identification

NSN: 5310-01-554-4238
NIIN: 015544238
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: 8521860-35
Manufacturer: Honeywell International Inc. Dba Honeywell International

General Description

The Washer,flat, cataloged under National Stock Number 5310-01-554-4238, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Honeywell International Inc. Dba Honeywell International. 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	5310-01-554-4238
Primary Part Number	8521860-35
Item Name	Washer,flat
FSC / FSG	5310 / 53 — Nuts and Washers
Manufacturer	Honeywell International Inc. Dba Honeywell International
Status	ACTIVE
Criticality Code Justification	AGAV

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
8521860-35 PRIMARY	Honeywell International Inc. Dba Honeywell International (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 5310-01-554-4238?

NSN 5310-01-554-4238 is a Washer,flat, manufactured by Honeywell International Inc. Dba Honeywell International, classified under FSC 5310, Nuts and Washers. Status: active.

What part numbers are listed for NSN 5310-01-554-4238?

NSN 5310-01-554-4238 has 1 manufacturer part number on file: 8521860-35 (Honeywell International Inc. Dba Honeywell International).

What are the specifications of 8521860-35?

Key specifications for 8521860-35: Criticality Code Justification: AGAV; Part Name Assigned by Controlling Agency: WASHER,FLAT,AIRCRAFT; End Item Identification: MV-22 AIRCRAFT. 1 specification is documented in the U.S. Government catalog.

Is NSN 5310-01-554-4238 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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