The Receiver-Transmitter,light Signa, cataloged under National Stock Number 6030-01-474-8803, is classified within Federal Supply Class 6030 (Fiber Optic Devices) of the Fiber Optics Materials, Components, Assemblies, and Accessories group. The manufacturer of record is Lancast Inc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 6030-01-474-8803 |
| Primary Part Number | 4321-00 |
| Item Name | Receiver-Transmitter,light Signa |
| FSC / FSG | 6030 / 60 — Fiber Optic Devices |
| Manufacturer | Lancast Inc |
| 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 |
|---|---|
| 4321-00 PRIMARY | Lancast Inc (USA) |
| Reference | Meaning |
|---|---|
| 4321-11 | C/1 Advisory reference — outside the item-of-supply concept Lancast Inc |
NSN 6030-01-474-8803 is a Receiver-Transmitter,light Signa, manufactured by Lancast Inc, classified under FSC 6030, Fiber Optic Devices. Status: active.
NSN 6030-01-474-8803 has 1 manufacturer part number on file: 4321-00 (Lancast Inc).
1 possible match (shared part number, not a government interchangeability claim): 3040-01-619-0216. Verify interchangeability with system specifications before substitution.
Key specifications for 4321-00: Overall Height: 0.750 INCHES NOMINAL IN; Overall Length: 3.100 INCHES NOMINAL IN; Overall Width: 1.800 INCHES NOMINAL IN; Special Features: REVERSE POLARITY DETECTION AND AUTOMATIC CORRECTION; SUPPORTS LONG DISTANCE DATA TRANSMISSION OVER SIGLEMADE AND MULTIMODE FIBER OPTICS; SWITCH-SELECTABLE SQE; DIP SWITCH FOR LOW RECEIPT THRESHOLD EXTENDS SUPPORTED CABLE LENGTH BEYOND THE 100 METER 10BASE-T STANDARD; FULL COMPLEMENT OF DIAGNOSTIC LEDS; 10 MBPS; MAX POWER REQUIREMENTS SUPPLIED AT ILL,120MA @ 12VDC; LEDS,JAB,COL,RX,TX,PWR VDC. 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.