The Hinge,butt, cataloged under National Stock Number 5340-01-023-9798, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Builders Hardware Mfrs Assn Inc. Government technical data includes 20 specifications, 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: PR.
| Parameter | Value |
|---|---|
| NSN | 5340-01-023-9798 |
| Primary Part Number | BHMA-A156.1 A8411-600 4-1/2IN |
| Item Name | Hinge,butt |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Builders Hardware Mfrs Assn Inc |
| Status | ACTIVE |
| Mounting Hole Quantity | 8 |
| Reversible Feature | INCLUDED |
| Surface Treatment Document and Classification | UNABLE TO DECODE |
| Body Width | 4.500 INCHES NOMINAL IN |
| Pin Tip Style | FLAT BUTTON |
| Style Designator | BUTT W/DOOR LEAF OFFSET |
| Mounting Hole Diameter | 0.218 INCHES NOMINAL IN |
| Developed Distance From Pin Center to Offset Door Leaf Edge | 2.563 INCHES NOMINAL IN |
| Pin Center to Body Edge Distance | 2.125 INCHES NOMINAL IN |
| Hinge Mounting Type | HALF MORTISE |
| Material Thickness | 0.180 INCHES NOMINAL IN |
| Pin Removability | REMOVABLE |
| Door Leaf Offset Distance | 0.625 INCHES NOMINAL IN |
| Nondefinitive Spec/std Data | 4 1-2 SIZE |
| Knuckle Quantity | 5 |
| Surface Treatment | UNABLE TO DECODE |
| Material | UNABLE TO DECODE |
| Rising Pin | INCLUDED |
| Knuckle Type | BALL BEARING |
| Performance Type | HEAVY DUTY |
| 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 | PR |
| Part Number | Manufacturer |
|---|---|
| BHMA-A156.1 A8411-600 4-1/2IN PRIMARY | Builders Hardware Mfrs Assn Inc (USA) |
| Reference | Meaning |
|---|---|
| ANSI 156.1 TYPE A8411-600 | 5/9 Secondary reference U.S. Government activity |
| BHMA-A156.1 | 3/1 Design control — primary reference Builders Hardware Mfrs Assn Inc |
| FBB163 USP 4 1-2 | 3/9 Design control — primary reference Stanley Works the |
NSN 5340-01-023-9798 is a Hinge,butt, manufactured by Builders Hardware Mfrs Assn Inc, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-023-9798 has 1 manufacturer part number on file: BHMA-A156.1 A8411-600 4-1/2IN (Builders Hardware Mfrs Assn Inc).
Key specifications for BHMA-A156.1 A8411-600 4-1/2IN: Mounting Hole Quantity: 8; Reversible Feature: INCLUDED; Surface Treatment Document and Classification: UNABLE TO DECODE; Body Width: 4.500 INCHES NOMINAL IN. 20 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.