The Arm and Support Ass, cataloged under National Stock Number 1260-01-170-9901, is classified within Federal Supply Class 1260 (Fire Control Designating and Indicating Equipment) of the Fire Control Equipment group. The manufacturer of record is Leidos, Inc. Div Cyber and Information Solutions Services. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1260-01-170-9901 |
| Primary Part Number | 1398-1 |
| Item Name | Arm and Support Ass |
| FSC / FSG | 1260 / 12 — Fire Control Designating and Indicating Equipment |
| Manufacturer | Leidos, Inc. Div Cyber and Information Solutions Services |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 1398-1 PRIMARY | Leidos, Inc. Div Cyber and Information Solutions Services (USA) |
| Reference | Meaning |
|---|---|
| 1398-1 | 5/9 Secondary reference The Boeing Company |
NSN 1260-01-170-9901 is a Arm and Support Ass, manufactured by Leidos, Inc. Div Cyber and Information Solutions Services, classified under FSC 1260, Fire Control Designating and Indicating Equipment. Status: active.
NSN 1260-01-170-9901 has 1 manufacturer part number on file: 1398-1 (Leidos, Inc. Div Cyber and Information Solutions Services).
3 possible matches (shared part number, not a government interchangeability claim): 5305-01-272-9025, 5995-01-318-5952, 5985-01-360-2588. Verify interchangeability with system specifications before substitution.
Key specifications for 1398-1: End Item Identification: 1260-01-061-7081. 0 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 1260-01-170-9901 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.