O-Ring5331-01-388-1123

NSN 5331-01-388-1123 · NIIN 013881123 · Part number 999-5544

Morgan Crane Co Inc · FSC 5331 — O-ring · FSG 53 — Hardware and Abrasives · CAGE 6T388

Government record, cited

NSN 5331-01-388-1123 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-388-1123. Manufacturer of record part number: 999-5544.

Also searched as 5331-01-388-1123 · 5331013881123 · NIIN 013881123 · 01-388-1123 · FSC 5331 O-ring · CAGE 6T388 · 999-5544

Nearby stock numbers ← 5331-01-388-1021 O-Ring · 5331-01-388-1134 O-Ring →

5331-01-388-1123 — O-ring

Features

O-Ring — FSC 5331
2 manufacturer part numbers on file
Manufacturer of record: Morgan Crane Co Inc

Identification

NSN: 5331-01-388-1123
NIIN: 013881123
FSC: 5331 — O-ring
FSG: 53 — Hardware and Abrasives
Primary part number: 999-5544
Manufacturer: Morgan Crane Co Inc

General Description

The O-Ring, cataloged under National Stock Number 5331-01-388-1123, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Morgan Crane Co Inc. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Catalog Facts

Item Name	O-Ring
FSC / FSG	5331 — O-ring (FSG 53)
Manufacturers	Morgan Crane Co Inc (CAGE 6T388); Hiab Usa Inc (CAGE 34914)

Technical Specifications

Parameter	Value
NSN	5331-01-388-1123
Primary Part Number	999-5544
Item Name	O-Ring
FSC / FSG	5331 / 53 — O-ring
Manufacturer	Morgan Crane Co 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
999-5544 PRIMARY	Morgan Crane Co Inc (USA)
999-5544	Hiab Usa Inc (USA)

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 5331-01-388-1123?

NSN 5331-01-388-1123 is a O-Ring, manufactured by Morgan Crane Co Inc, classified under FSC 5331, O-ring. Status: active.

What part numbers are listed for NSN 5331-01-388-1123?

NSN 5331-01-388-1123 has 2 manufacturer part numbers on file: 999-5544 (Morgan Crane Co Inc), 999-5544 (Hiab Usa Inc).

Is NSN 5331-01-388-1123 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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