O-Ring5331-01-603-5775

NSN 5331-01-603-5775 · NIIN 016035775 · Part number P321-13

Kahlenberg Industries, Inc. Dba Kahlenberg Industries Inc · FSC 5331 — O-ring · FSG 53 — Hardware and Abrasives · CAGE 75214

Government record, cited

NSN 5331-01-603-5775 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-603-5775. Manufacturer of record part number: P321-13.

Also searched as 5331-01-603-5775 · 5331016035775 · NIIN 016035775 · 01-603-5775 · FSC 5331 O-ring · CAGE 75214 · P321-13

Nearby stock numbers ← 5331-01-603-5455 O-Ring · 5331-01-603-5789 O-Ring →

5331-01-603-5775 — O-ring

Features

O-Ring — FSC 5331
Cross-Sectional Height: 0.125 INCHES NOMINAL IN
Outside Diameter: 0.750 INCHES NOMINAL IN
Color: BLACK
Center Hole Diameter: 0.4375 INCHES NOMINAL IN
Material: RUBBER
1 manufacturer part number on file
Manufacturer of record: Kahlenberg Industries, Inc. Dba Kahlenberg Industries Inc

Identification

NSN: 5331-01-603-5775
NIIN: 016035775
FSC: 5331 — O-ring
FSG: 53 — Hardware and Abrasives
Primary part number: P321-13
Manufacturer: Kahlenberg Industries, Inc. Dba Kahlenberg Industries Inc

General Description

The O-Ring, cataloged under National Stock Number 5331-01-603-5775, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Kahlenberg Industries, Inc. Dba Kahlenberg Industries Inc. Government technical data includes 5 specifications, 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	5331-01-603-5775
Primary Part Number	P321-13
Item Name	O-Ring
FSC / FSG	5331 / 53 — O-ring
Manufacturer	Kahlenberg Industries, Inc. Dba Kahlenberg Industries Inc
Status	ACTIVE
Cross-Sectional Height	0.125 INCHES NOMINAL IN
Outside Diameter	0.750 INCHES NOMINAL IN
Color	BLACK
Center Hole Diameter	0.4375 INCHES NOMINAL IN
Material	RUBBER

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
P321-13 PRIMARY	Kahlenberg Industries, Inc. Dba Kahlenberg Industries 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 5331-01-603-5775?

NSN 5331-01-603-5775 is a O-Ring, manufactured by Kahlenberg Industries, Inc. Dba Kahlenberg Industries Inc, classified under FSC 5331, O-ring. Status: active.

What part numbers are listed for NSN 5331-01-603-5775?

NSN 5331-01-603-5775 has 1 manufacturer part number on file: P321-13 (Kahlenberg Industries, Inc. Dba Kahlenberg Industries Inc).

What are the specifications of P321-13?

Key specifications for P321-13: Cross-Sectional Height: 0.125 INCHES NOMINAL IN; Outside Diameter: 0.750 INCHES NOMINAL IN; Color: BLACK; Special Features: MATERIAL:BUNA-N SHORE 70. 5 specifications are documented in the U.S. Government catalog.

Is NSN 5331-01-603-5775 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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