PartsTable TECHNICAL DATA SHEET

NSN 4320-00-218-4285Government record, cited

Stem Valve Assembly4320-00-218-4285

NSN 4320-00-218-4285 · NIIN 002184285 · Part number SG2

Circor Naval Solutions Llc Dba Warren Pumps · FSC 4320 — Power and Hand Pumps · FSG 43 — Pumps and Compressors · CAGE 63857

Government record, cited

NSN 4320-00-218-4285 — this item is cataloged by the U.S. Government under National Stock Number 4320-00-218-4285. Manufacturer of record part number: SG2.

Also searched as 4320-00-218-4285 · 4320002184285 · NIIN 002184285 · 00-218-4285 · FSC 4320 Power and Hand Pumps · CAGE 63857 · SG2

Nearby stock numbers ← 4320-00-218-4284 Connecting Rod, Piston · 4320-00-218-4286 →

Features

Stem Valve Assembly — FSC 4320
1 manufacturer part number on file
Manufacturer of record: Circor Naval Solutions Llc Dba Warren Pumps

Identification

NSN: 4320-00-218-4285
NIIN: 002184285
FSC: 4320 — Power and Hand Pumps
FSG: 43 — Pumps and Compressors
Primary part number: SG2
Manufacturer: Circor Naval Solutions Llc Dba Warren Pumps

General Description

The Stem Valve Assembly, cataloged under National Stock Number 4320-00-218-4285, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Circor Naval Solutions Llc Dba Warren Pumps. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 8 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Catalog Facts

Item Name	Stem Valve Assembly
FSC / FSG	4320 — Power and Hand Pumps (FSG 43)
Manufacturers	Circor Naval Solutions Llc Dba Warren Pumps (CAGE 63857)

Technical Specifications

Parameter	Value
NSN	4320-00-218-4285
Primary Part Number	SG2
Item Name	Stem Valve Assembly
FSC / FSG	4320 / 43 — Power and Hand Pumps
Manufacturer	Circor Naval Solutions Llc Dba Warren Pumps
Status	ACTIVE

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)

⇄ Related Items 8

Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.

3655-00-633-80974-157-11-0001 POSSIBLE MATCH

CARTRIDGE,E,CHANGER

Possible match (shared part number)Air Products & Chemicals, Inc

5910-00-668-3561S8-151 POSSIBLE MATCH

CAPACITOR,FIXED,PAPER DIELECTRIC

Possible match (shared part number)Standard Motor Products

4440-00-690-3796SG2 POSSIBLE MATCH

DESICCANT CONTAINER,DEHUMIDIFIER

Possible match (shared part number)Mcintire Company Dba Western Progress

5905-01-076-8442R5DL2R5-220 POSSIBLE MATCH

RESISTOR,VOLTAGE SENSITIVE

Possible match (shared part number)Rtie Holdings Llc

2990-01-370-8418SG2 POSSIBLE MATCH

SENSOR,EXHAUST GAS,OXYGEN,EMISSI

Possible match (shared part number)Standard Motor Products

5330-01-379-0587 POSSIBLE MATCH

GASKET

Possible match (shared part number)

5340-01-641-4295SG2 POSSIBLE MATCH

CLIP,SPRING TENSION

Possible match (shared part number)Brk Brands Inc

5330-01-676-4705SG2 POSSIBLE MATCH

GASKET

Possible match (shared part number)Crouse-Hinds Co

Cross-Reference Index

Part Number	Manufacturer
SG2 PRIMARY	Circor Naval Solutions Llc Dba Warren Pumps (USA)

Related Parts

3655-00-633-8097POSSIBLE MATCH

CARTRIDGE,E,CHANGER

4-157-11-0001

5910-00-668-3561POSSIBLE MATCH

CAPACITOR,FIXED,PAPER DIELECTRIC

S8-151

4440-00-690-3796POSSIBLE MATCH

DESICCANT CONTAINER,DEHUMIDIFIER

SG2

5905-01-076-8442POSSIBLE MATCH

RESISTOR,VOLTAGE SENSITIVE

R5DL2R5-220

2990-01-370-8418POSSIBLE MATCH

SENSOR,EXHAUST GAS,OXYGEN,EMISSI

SG2

5330-01-379-0587POSSIBLE MATCH

GASKET

5340-01-641-4295POSSIBLE MATCH

CLIP,SPRING TENSION

SG2

5330-01-676-4705POSSIBLE MATCH

GASKET

SG2

Frequently Asked Questions

What is NSN 4320-00-218-4285?

NSN 4320-00-218-4285 is a Stem Valve Assembly, manufactured by Circor Naval Solutions Llc Dba Warren Pumps, classified under FSC 4320, Power and Hand Pumps. Status: active.

What part numbers are listed for NSN 4320-00-218-4285?

NSN 4320-00-218-4285 has 1 manufacturer part number on file: SG2 (Circor Naval Solutions Llc Dba Warren Pumps).

What NSN replaces 4320-00-218-4285?

8 possible matches (shared part number, not a government interchangeability claim): 3655-00-633-8097, 5910-00-668-3561, 4440-00-690-3796. Verify interchangeability with system specifications before substitution.

Is NSN 4320-00-218-4285 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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