PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

BHMA-A156.2 F80 GRADE 1Lock Set,mortise

Builders Hardware Mfrs Assn Inc · NSN 5340-01-019-2978 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-01-019-2978 — this item is cataloged by the U.S. Government under National Stock Number 5340-01-019-2978. Primary manufacturer part number: BHMA-A156.2 F80 GRADE 1.
Features
  • Lock Set,mortise — FSC 5340
  • Width: 1.125 INCHES NOMINAL IN
  • Locking Mechanism Type: PIN TUMBLER
  • Design Type: DEAD BOLT AND LATCH BOLT
  • Shape: ROUND CASE
  • Thickness: 2.750 INCHES NOMINAL BACKSET IN
  • Knob Shape: ROUND
  • Thickness: 1.375 INCHES NOMINAL OVERALL IN
Applications
  • Applications requiring Aluminum or Copper Alloy Knob construction
General Description

The Lock Set,mortise, cataloged under National Stock Number 5340-01-019-2978, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Builders Hardware Mfrs Assn Inc. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5340-01-019-2978
Primary Part NumberBHMA-A156.2 F80 GRADE 1
Item NameLock Set,mortise
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerBuilders Hardware Mfrs Assn Inc
StatusACTIVE
Width1.125 INCHES NOMINAL IN
Locking Mechanism TypePIN TUMBLER
Design TypeDEAD BOLT AND LATCH BOLT
ShapeROUND CASE
Thickness2.750 INCHES NOMINAL BACKSET IN
Knob ShapeROUND
Thickness1.375 INCHES NOMINAL OVERALL IN
Specification/standard Data80205-80204-ANSI A156.2 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Features ProvidedROSE
Operation MethodKNOB ON INSIDE AND KNOB ON OUTSIDE LATCH BOLT
MaterialALUMINUM OR COPPER ALLOY KNOB
Length2.250 INCHES NOMINAL IN
MaterialALUMINUM OR COPPER ALLOY FACE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueEA
Verified Substitutes 12
5340-00-003-9226BHMA-A156.2 F88 GRADE 1 INTERCHANGEABLE
Lock Set,mortise
Builders Hardware Mfrs Assn Inc
5340-00-157-7595BHMA-A156.2 F76A GRADE 2 INTERCHANGEABLE
Lock Set,mortise
Builders Hardware Mfrs Assn Inc
5340-00-413-5267 INTERCHANGEABLE
Lock Set,mortise
5340-00-413-6527BHMA-A156.2 F81 GRADE 1 INTERCHANGEABLE
Lock Set,mortise
Builders Hardware Mfrs Assn Inc
5340-00-419-6568BHMA-A156.2 F81 GRADE 2 INTERCHANGEABLE
Lock Set,mortise
Builders Hardware Mfrs Assn Inc
5340-00-680-8788BHMA-A156.2 F75 GRADE 1 INTERCHANGEABLE
Lock Set,mortise
Builders Hardware Mfrs Assn Inc
5340-00-847-2605BHMA-A156.2 F82A GRADE 1 INTERCHANGEABLE
Lock Set,mortise
Builders Hardware Mfrs Assn Inc
5340-00-963-8310BHMA-A156.2 F82A GRADE 2 INTERCHANGEABLE
Lock Set,mortise
Builders Hardware Mfrs Assn Inc
5340-01-038-2708BHMA-A156.2 F82B GRADE 3 INTERCHANGEABLE
Lock Set,mortise
Builders Hardware Mfrs Assn Inc
5340-01-110-2043ANSI A156.2 F82 GRD 1 INTERCHANGEABLE
Lock Set,mortise
American National Standards Institute Incorporated Dba American National Standards Institute
Cross-Reference Index
Part NumberManufacturer
ANSI A156.2 FUNCTION F80 GRADE 1 American National Standards Institute Incorporated Dba American National Standards Institute (USA)
BHMA-A156.2 F80 GRADE 1 PRIMARY Builders Hardware Mfrs Assn Inc (USA)
BHMA-A156.2 Builders Hardware Mfrs Assn Inc (USA)
Related Parts
5340-00-003-9226INTERCHANGEABLE
LOCK SET,MORTISE
BHMA-A156.2 F88 GRADE 1
5340-00-157-7595INTERCHANGEABLE
LOCK SET,MORTISE
BHMA-A156.2 F76A GRADE 2
5340-00-413-5267INTERCHANGEABLE
LOCK SET,MORTISE
5340-00-413-6527INTERCHANGEABLE
LOCK SET,MORTISE
BHMA-A156.2 F81 GRADE 1
5340-00-419-6568INTERCHANGEABLE
LOCK SET,MORTISE
BHMA-A156.2 F81 GRADE 2
5340-00-680-8788INTERCHANGEABLE
LOCK SET,MORTISE
BHMA-A156.2 F75 GRADE 1
5340-00-847-2605INTERCHANGEABLE
LOCK SET,MORTISE
BHMA-A156.2 F82A GRADE 1
5340-00-963-8310INTERCHANGEABLE
LOCK SET,MORTISE
BHMA-A156.2 F82A GRADE 2
5340-01-038-2708INTERCHANGEABLE
LOCK SET,MORTISE
BHMA-A156.2 F82B GRADE 3
5340-01-110-2043INTERCHANGEABLE
LOCK SET,MORTISE
ANSI A156.2 F82 GRD 1
5340-01-197-9212INTERCHANGEABLE
LOCK SET,MORTISE
BHMA-A156.2 F75 GRADE 2 FIN 605
5340-01-237-7519INTERCHANGEABLE
LOCK SET,MORTISE
BHMA-A156.2 F92 GRADE 1

Frequently Asked Questions

What is NSN 5340-01-019-2978?

NSN 5340-01-019-2978 is a Lock Set,mortise, manufactured by Builders Hardware Mfrs Assn Inc, classified under FSC 5340 (No Item Name Available). Status: active.

What are the part numbers for NSN 5340-01-019-2978?

NSN 5340-01-019-2978 has 3 cross-referenced part numbers: ANSI A156.2 FUNCTION F80 GRADE 1 (American National Standards Institute Incorporated Dba American National Standards Institute), BHMA-A156.2 F80 GRADE 1 (Builders Hardware Mfrs Assn Inc), BHMA-A156.2 (Builders Hardware Mfrs Assn Inc).

What NSN replaces 5340-01-019-2978?

There are 12 known substitutes for 5340-01-019-2978: 5340-00-003-9226, 5340-00-157-7595, 5340-00-413-5267 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of BHMA-A156.2 F80 GRADE 1?

Key specifications for BHMA-A156.2 F80 GRADE 1: Width: 1.125 INCHES NOMINAL IN; Locking Mechanism Type: PIN TUMBLER; Design Type: DEAD BOLT AND LATCH BOLT; Shape: ROUND CASE. 13 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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