PartsTable TECHNICAL DATA SHEET

NSN 5331-01-378-8578Government record, cited

O-Ring5331-01-378-8578

NSN 5331-01-378-8578 · NIIN 013788578 · Part number A71643-5

Thyssenkrupp Rothe Erde Usa Inc. · FSC 5331 — O-ring · FSG 53 — Hardware and Abrasives · CAGE 28666

Government record, cited

NSN 5331-01-378-8578 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-378-8578. Manufacturer of record part number: A71643-5.

Also searched as 5331-01-378-8578 · 5331013788578 · NIIN 013788578 · 01-378-8578 · FSC 5331 O-ring · CAGE 28666 · A71643-5 · T5-58P1B ITEM 21

Nearby stock numbers ← 5331-01-378-7510 O-Ring · 5331-01-378-8589 O-Ring →

5331-01-378-8578 — O-ring

Features

O-Ring — FSC 5331
1 manufacturer part number on file
Manufacturer of record: Thyssenkrupp Rothe Erde Usa Inc.

Identification

NSN: 5331-01-378-8578
NIIN: 013788578
FSC: 5331 — O-ring
FSG: 53 — Hardware and Abrasives
Primary part number: A71643-5
Manufacturer: Thyssenkrupp Rothe Erde Usa Inc.

General Description

The O-Ring, cataloged under National Stock Number 5331-01-378-8578, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Thyssenkrupp Rothe Erde Usa 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.

Catalog Facts

Item Name	O-Ring
FSC / FSG	5331 — O-ring (FSG 53)
Manufacturers	Thyssenkrupp Rothe Erde Usa Inc. (CAGE 28666)

Technical Specifications

Parameter	Value
NSN	5331-01-378-8578
Primary Part Number	A71643-5
Item Name	O-Ring
FSC / FSG	5331 / 53 — O-ring
Manufacturer	Thyssenkrupp Rothe Erde Usa 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)

Cross-Reference Index

Part Number	Manufacturer
A71643-5 PRIMARY	Thyssenkrupp Rothe Erde Usa Inc. (USA)

Reference documents

Reference	Meaning
T5-58P1B ITEM 21	5/9 Secondary reference Thyssenkrupp Rothe Erde Usa Inc.

No interchangeability data on file.

Other items in FSC 5331 — O-ring

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

5331-00-001-1971

O-RING

5331-00-001-1979

O-RING

5331-00-001-3904

O-RING

5331-00-001-3905

O-RING

5331-00-001-3906

O-RING

5331-00-001-3908

O-RING

5331-00-001-3923

O-RING

5331-00-001-3924

O-RING

Frequently Asked Questions

What is NSN 5331-01-378-8578?

NSN 5331-01-378-8578 is a O-Ring, manufactured by Thyssenkrupp Rothe Erde Usa Inc., classified under FSC 5331, O-ring. Status: active.

What part numbers are listed for NSN 5331-01-378-8578?

NSN 5331-01-378-8578 has 1 manufacturer part number on file: A71643-5 (Thyssenkrupp Rothe Erde Usa Inc.).

Is NSN 5331-01-378-8578 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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