The Retainer,electron Tube, cataloged under National Stock Number 5960-00-272-8567, is classified within Federal Supply Class 5960 (Electron Tubes and Associated Hardware) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Interplex Nascal Inc. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5960-00-272-8567 |
| Primary Part Number | 128K1-502D |
| Item Name | Retainer,electron Tube |
| FSC / FSG | 5960 / 59 — Electron Tubes and Associated Hardware |
| Manufacturer | Interplex Nascal Inc |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 2 SLOT SINGLE MOUNTING FACILITY |
| Distance From Retainer Center to Centerline of Mounting Facility | 1.312 INCHES NOMINAL IN |
| Mounting Slot Length | 0.312 INCHES NOMINAL SINGLE MOUNTING FACILITY IN |
| Angle Between Mounting Facility and Tension Loop Centerlines in Deg | 42.0 |
| Style Designator | DOUBLE FOOT, CLIP LOCKED TENSION CLAMP |
| Accommodated Item Securing Device Type | CLAMP |
| Angle Between Adjacent Mounting Facilities in Deg | 180.0 |
| Distance From Retainer Center to End of Extended Clip | 1.984 INCHES NOMINAL IN |
| Inside Diameter | 2.210 INCHES NOMINAL IN |
| Electron Tube Base Accommodated Diameter | +2.200 TO 2.290 INCHES IN |
| Angle Between Mounting Facility and Loop Hinge Centerlines in Deg | 29.0 |
| Material | STEEL |
| Mounting Slot Width | 0.188 INCHES NOMINAL SINGLE MOUNTING FACILITY IN |
| 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 |
|---|---|
| 128K1-502D | Interplex Nascal Inc (USA) |
| 128K1-52H | Interplex Nascal Inc (USA) |
| 154K2-2252D | Interplex Nascal Inc (USA) |
| Reference | Meaning |
|---|---|
| 50519-2 | 3/2 Design control — primary reference U.S. Government activity |
| 268-3558-17 | 5/9 Secondary reference Lockheed Martin Corporation Div Lockheed Martin Information Systems & Global Solutions |
| 926G-28 | 5/9 Secondary reference Schroff Inc |
NSN 5960-00-272-8567 is a Retainer,electron Tube, manufactured by Interplex Nascal Inc, classified under FSC 5960, Electron Tubes and Associated Hardware. Status: active.
NSN 5960-00-272-8567 has 3 manufacturer part numbers on file: 128K1-502D (Interplex Nascal Inc), 128K1-52H (Interplex Nascal Inc), 154K2-2252D (Interplex Nascal Inc).
1 possible match (shared part number, not a government interchangeability claim): 5935-01-106-2160. Verify interchangeability with system specifications before substitution.
Key specifications for 128K1-502D: Mounting Facility Type and Quantity: 2 SLOT SINGLE MOUNTING FACILITY; Overall Height: 1.000 INCHES NOMINAL IN; Distance From Retainer Center to Centerline of Mounting Facility: 1.312 INCHES NOMINAL IN; Mounting Slot Length: 0.312 INCHES NOMINAL SINGLE MOUNTING FACILITY IN. 13 specifications are 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.