The Oven,electrical-Electronic Compo, cataloged under National Stock Number 5955-01-233-8210, is classified within Federal Supply Class 5955 (Oscillators and Piezoelectric Crystals) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Lockheed Martin Corporation Div Rms. Government technical data includes 18 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5955-01-233-8210 |
| Primary Part Number | 77C721392P001 |
| Item Name | Oven,electrical-Electronic Compo |
| FSC / FSG | 5955 / 59 — Oscillators and Piezoelectric Crystals |
| Manufacturer | Lockheed Martin Corporation Div Rms |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 4 THREADED HOLE(S) |
| Heater Element Operating Voltage Rating in Volts and Type | 15.0 DC NOMINAL |
| Inclosure Type | HERMETICALLY SEALED |
| Body Width | 2.000 INCHES NOMINAL IN |
| Maintained Oven Cavity Temp Rating | 50.0 CELSIUS DEGC |
| Style Designator | SOLDER CONNECTED |
| Wire Lead Length | 0.500 INCHES NOMINAL IN |
| Distance Between Mounting Facility Centers | 1.700 INCHES NOMINAL AND 2.200 INCHES NOMINAL IN |
| Nominal Thread Size | 0.112 INCHES IN |
| Component Type and Quantity Accommodated | 1 CRYSTAL |
| Temp Control Device Type | PROPORTIONAL |
| Thread Class | 2B |
| Thread Quantity Per Inch | 40 |
| Body Overall Height | 0.600 INCHES NOMINAL IN |
| Terminal Type and Quantity | 2 WIRE LEAD |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Maintained Temp Tolerance Rating | -3.0 TO 3.0 CELSIUS DEGC |
| Operating Power Dissipating Rating in Watts | 7.0 |
| 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 |
|---|---|
| 77C721392P001 PRIMARY | Lockheed Martin Corporation Div Rms (USA) |
| Reference | Meaning |
|---|---|
| PC1-88 | 5/9 Secondary reference Oak Crystal Inc |
NSN 5955-01-233-8210 is a Oven,electrical-Electronic Compo, manufactured by Lockheed Martin Corporation Div Rms, classified under FSC 5955, Oscillators and Piezoelectric Crystals. Status: active.
NSN 5955-01-233-8210 has 1 manufacturer part number on file: 77C721392P001 (Lockheed Martin Corporation Div Rms).
1 possible match (shared part number, not a government interchangeability claim): 5340-01-577-4202. Verify interchangeability with system specifications before substitution.
Key specifications for 77C721392P001: Mounting Facility Type and Quantity: 4 THREADED HOLE(S); Heater Element Operating Voltage Rating in Volts and Type: 15.0 DC NOMINAL; Inclosure Type: HERMETICALLY SEALED; Body Width: 2.000 INCHES NOMINAL IN. 18 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.