The Oil Filler Extension, cataloged under National Stock Number 4130-01-130-0741, is classified within Federal Supply Class 4130 (Refrigeration and Air Conditioning Components) of the Refrigeration, AC, and Air Circulating Equipment group. The manufacturer of record is Walker Power Systems, Inc. Dba Tiernay Turbines. 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. 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 | 4130-01-130-0741 |
| Primary Part Number | 100865-1-2 |
| Item Name | Oil Filler Extension |
| FSC / FSG | 4130 / 41 — Refrigeration and Air Conditioning Components |
| Manufacturer | Walker Power Systems, Inc. Dba Tiernay Turbines |
| Status | ACTIVE |
| General Characteristics Item Description | ALODINE MIL-C-5541 CLASS 1A,63 MICROINCH SURFACE FINISH,1.000-12 UNF 1A THREAD 1.000 IN. MAX 0.970 IN. MIN LG ON END,1.000-14 UNF 1B THREAD,COUNTERBORE 1.023 IN. NOM 0.125 IN. NOM DP,CHAMFER 120 DEG NOM 1.156 IN. NOM ON OPPOSITE END,THIRD END 90 DEG IN RELATION TO SECOND END 1.000-12 UNF 1B THREAD COUNTERBORE 1.023 IN. NOM 0.125 IN. NOM DP CHAMFER 120 DEG NOM 1.156 IN. NOM,SECTION WITH SECOND AND THIRD ENDS 2.280 IN. MIN 2.310 IN. MAX LG,1.660 IN. MIN 1.690 IN. MAX W,1.320 IN. MIN 1-380 IN. MAX DP A |
| 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 |
|---|---|
| 100865-1-2 PRIMARY | Walker Power Systems, Inc. Dba Tiernay Turbines (USA) |
NSN 4130-01-130-0741 is a Oil Filler Extension, manufactured by Walker Power Systems, Inc. Dba Tiernay Turbines, classified under FSC 4130, Refrigeration and Air Conditioning Components. Status: active.
NSN 4130-01-130-0741 has 1 manufacturer part number on file: 100865-1-2 (Walker Power Systems, Inc. Dba Tiernay Turbines).
1 possible match (shared part number, not a government interchangeability claim): 2590-01-618-7272. Verify interchangeability with system specifications before substitution.
Key specifications for 100865-1-2: General Characteristics Item Description: ALODINE MIL-C-5541 CLASS 1A,63 MICROINCH SURFACE FINISH,1.000-12 UNF 1A THREAD 1.000 IN. MAX 0.970 IN. MIN LG ON END,1.000-14 UNF 1B THREAD,COUNTERBORE 1.023 IN. NOM 0.125 IN. NOM DP,CHAMFER 120 DEG NOM 1.156 IN. NOM ON OPPOSITE END,THIRD END 90 DEG IN RELATION TO SECOND END 1.000-12 UNF 1B THREAD COUNTERBORE 1.023 IN. NOM 0.125 IN. NOM DP CHAMFER 120 DEG NOM 1.156 IN. NOM,SECTION WITH SECOND AND THIRD ENDS 2.280 IN. MIN 2.310 IN. MAX LG,1.660 IN. MIN 1.690 IN. MAX W,1.320 IN. MIN 1-380 IN. MAX DP A; End Item Identification: A/M32C-10C AIR CONDITIONER 4120-00-303-3064. 1 specification is 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.