The Frame,round,es Transit, cataloged under National Stock Number 5975-01-388-0577, is classified within Federal Supply Class 5975 (Electrical Hardware and Supplies) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Roxtec 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5975-01-388-0577 |
| Primary Part Number | ESR-100 |
| Item Name | Frame,round,es Transit |
| FSC / FSG | 5975 / 59 — Electrical Hardware and Supplies |
| Manufacturer | Roxtec Inc |
| Status | ACTIVE |
| General Characteristics Item Description | ROXYLON |
| 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 |
|---|---|
| ESR-100 PRIMARY | Roxtec Inc (USA) |
| Reference | Meaning |
|---|---|
| ER00A01001118 | 5/1 Secondary reference Roxtec Inc |
| ESR-100 | 5/9 Secondary reference L-3 Communications Westwood Corporation Dba Nmp Division Div L3 Westwood Corporation |
NSN 5975-01-388-0577 is a Frame,round,es Transit, manufactured by Roxtec Inc, classified under FSC 5975, Electrical Hardware and Supplies. Status: active.
NSN 5975-01-388-0577 has 1 manufacturer part number on file: ESR-100 (Roxtec Inc).
Key specifications for ESR-100: General Characteristics Item Description: ROXYLON; Special Features: USE IN 4 IN. ROUND MULTIPLE PENETRATION; HARDWARE STANDARD FITTINGS, CONDUCTIVE SCREEN, CONDUCTIVE TAPE; ELECTROMAGNETIC SHIELDING IN. 1 specification is 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.