The Boresight Kit,helmet Sight Assem, cataloged under National Stock Number 4931-01-412-3403, is classified within Federal Supply Class 4931 (No Item Name Available) of the Maintenance and Repair Shop Equipment group. The primary manufacturer of record is Hdt Expeditionary Systems Inc. This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Item Name | Boresight Kit,helmet Sight Assem |
| FSC / FSG | 4931 — No Item Name Available (FSG 49) |
| Manufacturers | Hdt Expeditionary Systems Inc (CAGE 92878); Engineered Environments Inc Dba E E I (CAGE 0LHE3); Drs Environmental Systems Inc (CAGE 5RQL2); Marquardt Switches Inc (CAGE 7W718) |
| Parameter | Value |
|---|---|
| NSN | 4931-01-412-3403 |
| Primary Part Number | 134-3-2 |
| Item Name | Boresight Kit,helmet Sight Assem |
| FSC / FSG | 4931 / 49 — No Item Name Available |
| Manufacturer | Hdt Expeditionary Systems Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 4931-01-412-3403 is a Boresight Kit,helmet Sight Assem, manufactured by Hdt Expeditionary Systems Inc, classified under FSC 4931 (No Item Name Available). Status: active.
NSN 4931-01-412-3403 has 4 cross-referenced part numbers: 134-3-2 (Hdt Expeditionary Systems Inc), 134-3-2 (Engineered Environments Inc Dba E E I), 134-3-2 (Drs Environmental Systems Inc), 1660 (Marquardt Switches Inc).
There are 6 known substitutes for 4931-01-412-3403: 5305-00-071-2237, 9540-00-119-9027, 5950-00-133-0161 and 3 more. Verify interchangeability with system specifications before substitution.