The Pulley,groove, cataloged under National Stock Number 3020-01-255-3658, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Datametrics Corporation. Government technical data includes 22 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3020-01-255-3658 |
| Primary Part Number | 700044-001 |
| Item Name | Pulley,groove |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Datametrics Corporation |
| Status | ACTIVE |
| Integral Cooling Vane | NOT INCLUDED |
| Bore Feature | INCLUDED |
| Securing Method | SETSCREW |
| Split Hub Feature | NOT INCLUDED |
| Bore Length | 0.500 INCHES NOMINAL IN |
| Design Form | PLAIN |
| Groove Shape | V |
| Style Designator | PLAIN |
| Material Document and Classification | QQ-A-225/6, ALLOY 2024, T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 0.260 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Bearings | NOT INCLUDED |
| Groove Quantity | 10 |
| Protruding Hub Characteristic | PLAIN |
| Surface Treatment | ANODIZE |
| Distance From Outside Flange/rim to Hub End and Location | 0.312 INCHES NOMINAL AA END IN |
| Counterbore Feature | NOT INCLUDED |
| Bore Diameter | 0.125 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY 2024 OVERALL |
| Face Width | 0.188 INCHES NOMINAL IN |
| Securing Location | AA END |
| Lightening Hole | NOT INCLUDED |
| 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 |
|---|---|
| 700044-001 PRIMARY | Datametrics Corporation (USA) |
| 700044-001 | Rugged Information Technology Equipment Corporation Dba Rugged Information Technology Equipment (USA) |
| 700044 | Datametrics Corporation (USA) |
| Reference | Meaning |
|---|---|
| 10LT-187X1/8 | 5/9 Secondary reference Fenner America Inc Fenner Manheim Div |
NSN 3020-01-255-3658 is a Pulley,groove, manufactured by Datametrics Corporation, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-255-3658 has 3 manufacturer part numbers on file: 700044-001 (Datametrics Corporation), 700044-001 (Rugged Information Technology Equipment Corporation Dba Rugged Information Technology Equipment), 700044 (Datametrics Corporation).
1 possible match (shared part number, not a government interchangeability claim): 4310-01-613-3709. Verify interchangeability with system specifications before substitution.
Key specifications for 700044-001: Integral Cooling Vane: NOT INCLUDED; Bore Feature: INCLUDED; Securing Method: SETSCREW; Split Hub Feature: NOT INCLUDED. 22 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.