The Shim, cataloged under National Stock Number 5365-01-231-9355, is classified within Federal Supply Class 5365 (Bushings, Rings, Shims, and Spacers) of the Hardware and Abrasives group. The manufacturer of record is Lamsco West, Inc Dba Lamsco Nw. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5365-01-231-9355 |
| Primary Part Number | BACS40R28A34F |
| Item Name | Shim |
| FSC / FSG | 5365 / 53 — Bushings, Rings, Shims, and Spacers |
| Manufacturer | Lamsco West, Inc Dba Lamsco Nw |
| Status | ACTIVE |
| Style Designator | RECTANGULAR |
| Material Document and Classification | QQ-A-250/1 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-250/5 T3 OR T4 FED SPEC 2ND MATERIAL RESPONSE OR QQ-A-250/8 FED SPEC 3RD MATERIAL RESPONSE |
| Features Provided | SEPARABLE |
| Lamination Quantity | 5 |
| Lamination Thickness | 0.003 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY 1100 OR ALUMINUM ALLOY OR ALUMINUM ALLOY 5052 |
| Construction | LAMINATED |
| 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 |
|---|---|
| BACS40R28A34F PRIMARY | Lamsco West, Inc Dba Lamsco Nw (USA) |
| BACS40R28A34F PRIMARY | Spirol Intl Corp (USA) |
| Reference | Meaning |
|---|---|
| BACS40R28A34F | 5/9 Secondary reference Blaisdell Mfg Inc |
| BACS40R28A34F | 3/2 Design control — primary reference U.S. Government activity |
NSN 5365-01-231-9355 is a Shim, manufactured by Lamsco West, Inc Dba Lamsco Nw, classified under FSC 5365, Bushings, Rings, Shims, and Spacers. Status: active.
NSN 5365-01-231-9355 has 2 manufacturer part numbers on file: BACS40R28A34F (Lamsco West, Inc Dba Lamsco Nw), BACS40R28A34F (Spirol Intl Corp).
Key specifications for BACS40R28A34F: Style Designator: RECTANGULAR; Material Document and Classification: QQ-A-250/1 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-250/5 T3 OR T4 FED SPEC 2ND MATERIAL RESPONSE OR QQ-A-250/8 FED SPEC 3RD MATERIAL RESPONSE; Overall Length: 3.380 INCHES MINIMUM AND 3.420 INCHES MAXIMUM IN; Overall Width: 2.780 INCHES MINIMUM AND 2.820 INCHES MAXIMUM IN. 7 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.