The Retainer,helical Compression Spr, cataloged under National Stock Number 5340-01-120-8380, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems. Government technical data includes 10 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-120-8380 |
| Primary Part Number | 135B6030-3 |
| Item Name | Retainer,helical Compression Spr |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems |
| Status | ACTIVE |
| Body Outside Diameter | 0.360 INCHES MINIMUM AND 0.368 INCHES MAXIMUM IN |
| Style Designator | IRREGULAR |
| Material Document and Classification | ASTM A322, COMP 4140 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A331, COMP 4140 ASSN STD SINGLE MATERIAL RESPONSE |
| Mounting Hole Diameter | 0.063 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN |
| Body Inside Diameter | 0.250 INCHES MINIMUM AND 0.254 INCHES MAXIMUM IN |
| Outside Chamfer Angle in Deg | 45.0 |
| Casehardening Indicator | NOT CASEHARDENED |
| Material | STEEL COMP 4140 |
| Outside Chamfer Depth | 0.030 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN |
| Inside Chamfer Angle in Deg | 45.0 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| 135B6030-3 PRIMARY | General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems (USA) |
| 135B6030-3 | Abbott Products Inc (USA) |
| 135B6030-3 | Cal Fittings Inc (USA) |
| Reference | Meaning |
|---|---|
| 135B6030-3 | 5/9 Secondary reference Dff Corp Div Dff Corporation |
| 10112406 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 5340-01-120-8380 is a Retainer,helical Compression Spr, manufactured by General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-120-8380 has 3 manufacturer part numbers on file: 135B6030-3 (General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems), 135B6030-3 (Abbott Products Inc), 135B6030-3 (Cal Fittings Inc).
Key specifications for 135B6030-3: Overall Height: 0.210 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN; Body Outside Diameter: 0.360 INCHES MINIMUM AND 0.368 INCHES MAXIMUM IN; Style Designator: IRREGULAR; Material Document and Classification: ASTM A322, COMP 4140 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A331, COMP 4140 ASSN STD SINGLE MATERIAL RESPONSE. 10 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.