The Clamp,tube,mask, cataloged under National Stock Number 4240-01-164-2155, 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 Biomarine Inc. Government technical data includes 2 specifications, 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. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4240-01-164-2155 |
| Primary Part Number | 45-110-3 |
| Item Name | Clamp,tube,mask |
| FSC / FSG | 4240 / 42 — Safety and Rescue Equipment |
| Manufacturer | Biomarine Inc |
| Status | ACTIVE |
| General Characteristics Item Description | PART OF COOLANT RING ASSEMBLY P/N45-110-3; USED ON BREATHING SYSTEM INSTALLATION |
| Reference Data and Literature | AF TO. 14S5-19-11 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 45-110-3 PRIMARY | Biomarine Inc (USA) |
NSN 4240-01-164-2155 is a Clamp,tube,mask, manufactured by Biomarine Inc, classified under FSC 4240, Safety and Rescue Equipment. Status: active.
NSN 4240-01-164-2155 has 1 manufacturer part number on file: 45-110-3 (Biomarine Inc).
1 possible match (shared part number, not a government interchangeability claim): 7690-01-390-4702. Verify interchangeability with system specifications before substitution.
Key specifications for 45-110-3: General Characteristics Item Description: PART OF COOLANT RING ASSEMBLY P/N45-110-3; USED ON BREATHING SYSTEM INSTALLATION; Reference Data and Literature: AF TO. 14S5-19-11; End Item Identification: SELF-CONTAINED BREATHING APPARATUS,4240010618444 AND 4240010618443. 2 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
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.