NSN 4210-00-522-3337 · NIIN 005223337 · Part number 30
Harold D Hard Co · FSC 4210 — Firefighting Equipment · FSG 42 — Fire Fighting, Rescue, and Safety Equipment · CAGE 24871
Government record, cited
NSN 4210-00-522-3337 — this item is cataloged by the U.S. Government under National Stock Number 4210-00-522-3337. Manufacturer of record part number: 30.
FSG: 42 — Fire Fighting, Rescue, and Safety Equipment
Primary part number: 30
Manufacturer: Harold D Hard Co
General Description
The Nipple,horn,portabl, cataloged under National Stock Number 4210-00-522-3337, is classified within Federal Supply Class 4210 (Firefighting Equipment) of the Fire Fighting, Rescue, and Safety Equipment group. The manufacturer of record is Harold D Hard Co. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 8 items share a part number with this NSN in the catalog (possible match — not a government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
Nipple,horn,portabl
FSC / FSG
4210 — Firefighting Equipment (FSG 42)
Manufacturers
Harold D Hard Co (CAGE 24871)
Technical Specifications
Parameter
Value
NSN
4210-00-522-3337
Primary Part Number
30
Item Name
Nipple,horn,portabl
FSC / FSG
4210 / 42 — Firefighting Equipment
Manufacturer
Harold D Hard Co
Status
ACTIVE
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
Possible hazard — SDS may be required (DLA HMIC P)
⇄Related Items8
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
3110-00-554-30816209ZPOSSIBLE MATCH
BEARING,BALL,ANNULAR
Possible match (shared part number)Skf Usa Inc.
6125-00-590-2126POSSIBLE MATCH
STATOR,MOTOR-GENERATOR
Possible match (shared part number)
4820-00-957-565544057-01POSSIBLE MATCH
VALVE,ANGLE
Possible match (shared part number)Greenfield World Trade Inc Div Greenfield World Trade Inc D/b/a Legion Industries
3120-00-978-8066POSSIBLE MATCH
BUSHING,SLEEVE
Possible match (shared part number)
2520-01-220-209450035POSSIBLE MATCH
PARTS KIT,TRANSMISSION LEVER UNI
Possible match (shared part number)Orscheln Products L.l.c.
5340-01-222-041750035POSSIBLE MATCH
RETAINER,HELICAL COMPRESSION SPR
Possible match (shared part number)The Oilgear Company Dba Jiffy Lube 213 Div Oilgear
5930-01-389-407650035POSSIBLE MATCH
SWITCH,TOGGLE
Possible match (shared part number)Thales Defense & Security Inc Dba Thales Communications Inc
4130-01-459-589150035POSSIBLE MATCH
HAPS VACUUM SYSTEM
Possible match (shared part number)Dcm Clean Air Products, Inc.
NSN 4210-00-522-3337 is a Nipple,horn,portabl, manufactured by Harold D Hard Co, classified under FSC 4210, Firefighting Equipment. Status: active.
What part numbers are listed for NSN 4210-00-522-3337?
NSN 4210-00-522-3337 has 1 manufacturer part number on file: 30 (Harold D Hard Co).
What NSN replaces 4210-00-522-3337?
8 possible matches (shared part number, not a government interchangeability claim): 3110-00-554-3081, 6125-00-590-2126, 4820-00-957-5655. Verify interchangeability with system specifications before substitution.
Is NSN 4210-00-522-3337 hazardous material?
Possible hazard — SDS may be required (DLA HMIC P). 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.