Washer, Seal5310-01-641-0675

NSN 5310-01-641-0675 · NIIN 016410675 · Part number AS-5578

Timken Aerospace, Inc Dba Torrington Product · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 60380

Government record, cited

NSN 5310-01-641-0675 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-641-0675. Manufacturer of record part number: AS-5578.

Also searched as 5310-01-641-0675 · 5310016410675 · NIIN 016410675 · 01-641-0675 · FSC 5310 Nuts and Washers · CAGE 60380 · AS-5578

Nearby stock numbers ← 5310-01-641-0640 Washer, Flat · 5310-01-641-0757 Nut, Plain, Cap →

5310-01-641-0675 — Nuts and Washers

Features

Washer,seal — FSC 5310
Outside Diameter: 78.0 MILLIMETERS NOMINAL MM
Hole Diameter: 55.0 MILLIMETERS NOMINAL MM
2 manufacturer part numbers on file
Manufacturer of record: Timken Aerospace, Inc Dba Torrington Product

Identification

NSN: 5310-01-641-0675
NIIN: 016410675
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: AS-5578
Manufacturer: Timken Aerospace, Inc Dba Torrington Product

General Description

The Washer,seal, cataloged under National Stock Number 5310-01-641-0675, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Timken Aerospace, Inc Dba Torrington Product. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	5310-01-641-0675
Primary Part Number	AS-5578
Item Name	Washer,seal
FSC / FSG	5310 / 53 — Nuts and Washers
Manufacturer	Timken Aerospace, Inc Dba Torrington Product
Status	ACTIVE
Outside Diameter	78.0 MILLIMETERS NOMINAL MM
Hole Diameter	55.0 MILLIMETERS NOMINAL MM

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
AS-5578 PRIMARY	Timken Aerospace, Inc Dba Torrington Product (USA)
AS-5578	The Timken Corporation (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 5310-01-641-0675?

NSN 5310-01-641-0675 is a Washer,seal, manufactured by Timken Aerospace, Inc Dba Torrington Product, classified under FSC 5310, Nuts and Washers. Status: active.

What part numbers are listed for NSN 5310-01-641-0675?

NSN 5310-01-641-0675 has 2 manufacturer part numbers on file: AS-5578 (Timken Aerospace, Inc Dba Torrington Product), AS-5578 (The Timken Corporation).

What are the specifications of AS-5578?

Key specifications for AS-5578: Outside Diameter: 78.0 MILLIMETERS NOMINAL MM; Hole Diameter: 55.0 MILLIMETERS NOMINAL MM. 2 specifications are documented in the U.S. Government catalog.

Is NSN 5310-01-641-0675 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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