Seal Assembly, Shaft, Spring Loade4320-01-494-3158

NSN 4320-01-494-3158 · NIIN 014943158 · Part number C11733

John Crane, Inc · FSC 4320 — Power and Hand Pumps · FSG 43 — Pumps and Compressors · CAGE 71724

Government record, cited

NSN 4320-01-494-3158 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-494-3158. Manufacturer of record part number: C11733.

Also searched as 4320-01-494-3158 · 4320014943158 · NIIN 014943158 · 01-494-3158 · FSC 4320 Power and Hand Pumps · CAGE 71724 · C11733 · N-SP-00328 · 2534CRAN-SP-00328

Nearby stock numbers ← 4320-01-494-2741 Motor, Hydraulic · 4320-01-494-3548 Deflector, Dirt and Liquid →

Features

Seal Assembly,shaft,spring Loade — FSC 4320
Functional Description: MECHANICAL SEAL USED ON 2 IN. PUMP SHAFT IN
3 manufacturer part numbers on file
Manufacturer of record: John Crane, Inc

Identification

NSN: 4320-01-494-3158
NIIN: 014943158
FSC: 4320 — Power and Hand Pumps
FSG: 43 — Pumps and Compressors
Primary part number: C11733
Manufacturer: John Crane, Inc

General Description

The Seal Assembly,shaft,spring Loade, cataloged under National Stock Number 4320-01-494-3158, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is John Crane, Inc. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 3 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	4320-01-494-3158
Primary Part Number	C11733
Item Name	Seal Assembly,shaft,spring Loade
FSC / FSG	4320 / 43 — Power and Hand Pumps
Manufacturer	John Crane, Inc
Status	ACTIVE
Functional Description	MECHANICAL SEAL USED ON 2 IN. PUMP SHAFT IN

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
C11733 PRIMARY	John Crane, Inc (USA)
N-SP-00328 PRIMARY	John Crane, Inc (USA)
2534CRAN-SP-00328	Circor Naval Solutions Llc Dba Warren Pumps (USA)

No interchangeability data on file.

Other items in FSC 4320 — Power and Hand Pumps

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

4320-00-001-1633

4320-00-001-1633 · Item name not on file

4320-00-001-2628

RETAINER AND PIN

4320-00-001-2629

HOUSING AND PIN

4320-00-001-2630

PUMP,CENTRIFUGAL

4320-00-001-2631

4320-00-001-2631 · Item name not on file

4320-00-001-2632

4320-00-001-2632 · Item name not on file

4320-00-001-3377

4320-00-001-3377 · Item name not on file

4320-00-001-3384

4320-00-001-3384 · Item name not on file

Frequently Asked Questions

What is NSN 4320-01-494-3158?

NSN 4320-01-494-3158 is a Seal Assembly,shaft,spring Loade, manufactured by John Crane, Inc, classified under FSC 4320, Power and Hand Pumps. Status: active.

What part numbers are listed for NSN 4320-01-494-3158?

NSN 4320-01-494-3158 has 3 manufacturer part numbers on file: C11733 (John Crane, Inc), N-SP-00328 (John Crane, Inc), 2534CRAN-SP-00328 (Circor Naval Solutions Llc Dba Warren Pumps).

What are the specifications of C11733?

Key specifications for C11733: Special Features: XF9117(316) STAINLESS STEEL MATERIAL, TYPE 1; 2 IN. I.D. IN; Functional Description: MECHANICAL SEAL USED ON 2 IN. PUMP SHAFT IN; Part Name Assigned by Controlling Agency: SEAL ASSEMBLY,SHAFT; End Item Identification: LUBE OIL PUMP. 1 specification is documented in the U.S. Government catalog.

Is NSN 4320-01-494-3158 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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