The Test Set Subassembly,physical Pr, cataloged under National Stock Number 6635-01-577-1164, is classified within Federal Supply Class 6635 (Physical Properties Testing and Inspection) of the Instruments and Laboratory Equipment group. The manufacturer of record is Ovc-Engineered Solutions Llc. 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 | 6635-01-577-1164 |
| Primary Part Number | 20071301-1 |
| Item Name | Test Set Subassembly,physical Pr |
| FSC / FSG | 6635 / 66 — Physical Properties Testing and Inspection |
| Manufacturer | Ovc-Engineered Solutions Llc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 20071301-1 PRIMARY | Ovc-Engineered Solutions Llc (USA) |
NSN 6635-01-577-1164 is a Test Set Subassembly,physical Pr, manufactured by Ovc-Engineered Solutions Llc, classified under FSC 6635, Physical Properties Testing and Inspection. Status: active.
NSN 6635-01-577-1164 has 1 manufacturer part number on file: 20071301-1 (Ovc-Engineered Solutions Llc).
1 possible match (shared part number, not a government interchangeability claim): 4920-01-671-4440. Verify interchangeability with system specifications before substitution.
Key specifications for 20071301-1: Special Features: PLASTIC HOUSING AND PARTS WITH STAINLESS STEEL HARDWARE; Part Name Assigned by Controlling Agency: SILT DENSITY INDEX TEST KIT; End Item Identification: 4610-01-488-9656; TACTICAL WATER PURIFICATION SYSTEM (TWPS). 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.
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.