The Bearing,sleeve, cataloged under National Stock Number 3120-01-317-4068, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Rolls-Royce Inc. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3120-01-317-4068 |
| Primary Part Number | B4-9 |
| Item Name | Bearing,sleeve |
| FSC / FSG | 3120 / 31 — No Item Name Available |
| Manufacturer | Rolls-Royce Inc |
| Status | ACTIVE |
| Material Document and Classification | MIL-B-5687,TYPE 1,GRADE 1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Body Inside Diameter | 0.2502 INCHES MINIMUM AND 0.2504 INCHES MAXIMUM IN |
| Flange Width | 0.0400 INCHES MINIMUM AND 0.0420 INCHES MAXIMUM IN |
| Material | COPPER ALLOY 841 OVERALL |
| Corner Shape | SQUARE ALL CORNERS |
| Style Designator | SOLID, EXTERNAL FLANGE ONE END |
| Flange Outside Diameter | 0.6900 INCHES MINIMUM AND 0.6950 INCHES MAXIMUM IN |
| Body Outside Diameter | 0.6249 INCHES MINIMUM AND 0.6251 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| B4-9 | Rolls-Royce Inc (USA) |
| S3S14454000-022 | Rolls-Royce Plc Div Defense (europe) (GBR) |
| S3S14454000-022 | Rolls-Royce Airlines (GBR) |
| B4-9 | Reliance Precision Limited (GBR) |
NSN 3120-01-317-4068 is a Bearing,sleeve, manufactured by Rolls-Royce Inc, classified under FSC 3120 (No Item Name Available). Status: active.
NSN 3120-01-317-4068 has 4 cross-referenced part numbers: B4-9 (Rolls-Royce Inc), S3S14454000-022 (Rolls-Royce Plc Div Defense (europe)), S3S14454000-022 (Rolls-Royce Airlines), B4-9 (Reliance Precision Limited).
There are 7 known substitutes for 3120-01-317-4068: 3030-00-223-4599, 6685-00-401-0995, 5365-00-631-6034 and 4 more. Verify interchangeability with system specifications before substitution.
Key specifications for B4-9: Overall Length: 0.1910 INCHES MINIMUM AND 0.1960 INCHES MAXIMUM IN; Material Document and Classification: MIL-B-5687,TYPE 1,GRADE 1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Body Inside Diameter: 0.2502 INCHES MINIMUM AND 0.2504 INCHES MAXIMUM IN; Flange Width: 0.0400 INCHES MINIMUM AND 0.0420 INCHES MAXIMUM IN. 9 total characteristics are documented in the Federal Logistics Information System.