PartsTable TECHNICAL DATA SHEET
NSN 4240-01-435-8337Government record, cited

Mask Assembly, with Speech Diaphr4240-01-435-8337

NSN 4240-01-435-8337 · NIIN 014358337 · Part number 336-890-222
Interspiro Inc · FSC 4240 — Safety and Rescue Equipment · FSG 42 — Fire Fighting, Rescue, and Safety Equipment · CAGE 47432
Government record, cited
NSN 4240-01-435-8337 — this item is cataloged by the U.S. Government under National Stock Number 4240-01-435-8337. Manufacturer of record part number: 336-890-222.
Also searched as  4240-01-435-8337 · 4240014358337 · NIIN 014358337 · 01-435-8337 · FSC 4240 Safety and Rescue Equipment · CAGE 47432 · 336-890-222
Nearby stock numbers  ·
Features
  • Mask Assembly,with Speech Diaphr — FSC 4240
  • Material: RUBBER NATURAL
  • 1 manufacturer part number on file
  • Manufacturer of record: Interspiro Inc
Identification
  • NSN: 4240-01-435-8337
  • NIIN: 014358337
  • FSC: 4240 — Safety and Rescue Equipment
  • FSG: 42 — Fire Fighting, Rescue, and Safety Equipment
  • Primary part number: 336-890-222
  • Manufacturer: Interspiro Inc
General Description

The Mask Assembly,with Speech Diaphr, cataloged under National Stock Number 4240-01-435-8337, 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. Government technical data includes 1 specification, 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
ParameterValue
NSN4240-01-435-8337
Primary Part Number336-890-222
Item NameMask Assembly,with Speech Diaphr
FSC / FSG4240 / 42 — Safety and Rescue Equipment
ManufacturerInterspiro Inc
StatusACTIVE
MaterialRUBBER NATURAL
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardPossible hazard — SDS may be required (DLA HMIC P)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
336-890-222 PRIMARY Interspiro Inc (USA)
No interchangeability data on file.
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 4240-01-435-8337?

NSN 4240-01-435-8337 is a Mask Assembly,with Speech Diaphr, manufactured by Interspiro Inc, classified under FSC 4240, Safety and Rescue Equipment. Status: active.

What part numbers are listed for NSN 4240-01-435-8337?

NSN 4240-01-435-8337 has 1 manufacturer part number on file: 336-890-222 (Interspiro Inc).

What are the specifications of 336-890-222?

Key specifications for 336-890-222: Special Features: WITH BREATHING VALVE AND BY-PASS WITH QUICK DISCONNECT, AIR FORCE; USED ON MODEL SPIROMATIC/SPIROLITE 9030 6630 4530 4515; Material: RUBBER NATURAL. 1 specification is documented in the U.S. Government catalog.

Is NSN 4240-01-435-8337 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.
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