NSN 4240-01-396-2373 · NIIN 013962373 · Part number 336-890-135
Interspiro Inc · FSC 4240 — Safety and Rescue Equipment · FSG 42 — Fire Fighting, Rescue, and Safety Equipment · CAGE 47432
Government record, cited
NSN 4240-01-396-2373 — this item is cataloged by the U.S. Government under National Stock Number 4240-01-396-2373. Manufacturer of record part number: 336-890-135.
Also searched as4240-01-396-2373 ·
4240013962373 ·
NIIN 013962373 ·
01-396-2373 ·
FSC 4240 Safety and Rescue Equipment · CAGE 47432 · 336-890-135
FSG: 42 — Fire Fighting, Rescue, and Safety Equipment
Primary part number: 336-890-135
Manufacturer: Interspiro Inc
General Description
The Sealing Piston Assembly,breathin, cataloged under National Stock Number 4240-01-396-2373, is classified within Federal Supply Class 4240 (Safety and Rescue Equipment) of the Fire Fighting, Rescue, and Safety Equipment group. The manufacturer of record is Interspiro Inc. 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
4240-01-396-2373
Primary Part Number
336-890-135
Item Name
Sealing Piston Assembly,breathin
FSC / FSG
4240 / 42 — Safety and Rescue Equipment
Manufacturer
Interspiro Inc
Status
ACTIVE
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
Possible hazard — SDS may be required (DLA HMIC P)
Other items in FSC 4240 — Safety and Rescue Equipment
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4240-00-001-1515
4240-00-001-1515 · Item name not on file
4240-00-001-2684
4240-00-001-2684 · Item name not on file
4240-00-006-0022
HOSE,EVACUATION
4240-00-007-4576
4240-00-007-4576 · Item name not on file
4240-00-007-8182
4240-00-007-8182 · Item name not on file
4240-00-007-8183
4240-00-007-8183 · Item name not on file
4240-00-007-8184
4240-00-007-8184 · Item name not on file
4240-00-007-8185
4240-00-007-8185 · Item name not on file
Frequently Asked Questions
What is NSN 4240-01-396-2373?
NSN 4240-01-396-2373 is a Sealing Piston Assembly,breathin, manufactured by Interspiro Inc, classified under FSC 4240, Safety and Rescue Equipment. Status: active.
What part numbers are listed for NSN 4240-01-396-2373?
NSN 4240-01-396-2373 has 1 manufacturer part number on file: 336-890-135 (Interspiro Inc).
What are the specifications of 336-890-135?
Key specifications for 336-890-135: Special Features: BREATHING VALVE WITH BY-PASS HOSE, MEETS NIOSH/MSHA APPROVAL FOR INTRINSICALLY SAFE APPARATUS; End Item Identification: 4240-01-333-3495. 0 specifications are documented in the U.S. Government catalog.
Is NSN 4240-01-396-2373 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.