The Pins,screen,tangent, cataloged under National Stock Number 6540-01-360-8954, is classified within Federal Supply Class 6540 (Ophthalmic Instruments, Equipment, and Supplies) of the Medical, Dental, and Veterinary Equipment group. The manufacturer of record is Richmond Products 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. Unit of issue: PG.
| Parameter | Value |
|---|---|
| NSN | 6540-01-360-8954 |
| Primary Part Number | 4490 |
| Item Name | Pins,screen,tangent |
| FSC / FSG | 6540 / 65 — Ophthalmic Instruments, Equipment, and Supplies |
| Manufacturer | Richmond Products Inc |
| Status | ACTIVE |
| Unit of Issue Cube | 0.0176 CUBIC FEET |
| General Characteristics Item Description | 1-1/4 IN.; BLK; DULL MATTE,ENAMEL HEADED; W/WRIST PIN CUSHION; FOR USE IN MAPPING THE VISUAL FLD,UNIT QTY 40 IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Unit of Issue | PG |
| Part Number | Manufacturer |
|---|---|
| 4490 PRIMARY | Richmond Products Inc (USA) |
NSN 6540-01-360-8954 is a Pins,screen,tangent, manufactured by Richmond Products Inc, classified under FSC 6540, Ophthalmic Instruments, Equipment, and Supplies. Status: active.
NSN 6540-01-360-8954 has 1 manufacturer part number on file: 4490 (Richmond Products Inc).
1 possible match (shared part number, not a government interchangeability claim): 5120-01-377-0235. Verify interchangeability with system specifications before substitution.
Key specifications for 4490: Unit of Issue Cube: 0.0176 CUBIC FEET; General Characteristics Item Description: 1-1/4 IN.; BLK; DULL MATTE,ENAMEL HEADED; W/WRIST PIN CUSHION; FOR USE IN MAPPING THE VISUAL FLD,UNIT QTY 40 IN; Part Name Assigned by Controlling Agency: PINS SCREEN TANGENT 1.25" BLACK DULL MATTE W/WRIST PIN CUSH 40S. 2 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.