PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

H28-1Catch,clamping

Hartwell Corporation · NSN 5340-00-978-1773 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-00-978-1773 — this item is cataloged by the U.S. Government under National Stock Number 5340-00-978-1773. Primary manufacturer part number: H28-1.
Features
  • Catch,clamping — FSC 5340
  • Operation Method: LEVER
  • Material: STEEL CORROSION RESISTING BODY
  • Material: STEEL COMP 4130 HOOK
  • Surface Treatment Document and Classification: QQ-P-416,TYPE 2,CLASS 2 FED SPEC ALL TREATMENT RESPONSES LINK
  • Surface Treatment: PASSIVATE BODY
  • Surface Treatment Document and Classification: QQ-P-416,TYPE 2,CLASS 2 FED SPEC ALL TREATMENT RESPONSES HOOK
  • Surface Treatment: CADMIUM OR CHROMATE LINK
Applications
  • Applications requiring Steel Corrosion Resisting Body construction
General Description

The Catch,clamping, cataloged under National Stock Number 5340-00-978-1773, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Hartwell Corporation. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5340-00-978-1773
Primary Part NumberH28-1
Item NameCatch,clamping
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerHartwell Corporation
StatusCANCELLED
Operation MethodLEVER
MaterialSTEEL CORROSION RESISTING BODY
MaterialSTEEL COMP 4130 HOOK
Surface Treatment Document and ClassificationQQ-P-416,TYPE 2,CLASS 2 FED SPEC ALL TREATMENT RESPONSES LINK
Surface TreatmentPASSIVATE BODY
Surface Treatment Document and ClassificationQQ-P-416,TYPE 2,CLASS 2 FED SPEC ALL TREATMENT RESPONSES HOOK
Surface TreatmentCADMIUM OR CHROMATE LINK
Hole Diameter0.189 INCHES NOMINAL IN
Surface TreatmentCADMIUM OR CHROMATE HOOK
MaterialSTEEL COMP 4130 LINK
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Unit of IssueEA
Verified Substitutes 5
No Item Name Available
5342-00-975-6276H28-1 INTERCHANGEABLE
Catch,roller
Ims Engineered Products Llc
4920-01-140-3941H281 INTERCHANGEABLE
Printer,engine Monitor
Howell Instruments, Inc. Dba Howell Instruments Inc
5950-01-146-7763 INTERCHANGEABLE
Transformer,audio Frequency
5930-01-152-0222 INTERCHANGEABLE
Switch,code Indicating Wheel
Cross-Reference Index
Part NumberManufacturer
H28-1 PRIMARY Hartwell Corporation (USA)
24L1-1 Howmet Global Fastening Systems Inc Div Camloc Products (USA)
Related Parts
5340-00-507-7409SUCCESSOR
NO ITEM NAME AVAILABLE
5342-00-975-6276INTERCHANGEABLE
CATCH,ROLLER
H28-1
4920-01-140-3941INTERCHANGEABLE
PRINTER,ENGINE MONITOR
H281
5950-01-146-7763INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
5930-01-152-0222INTERCHANGEABLE
SWITCH,CODE INDICATING WHEEL

Frequently Asked Questions

What is NSN 5340-00-978-1773?

NSN 5340-00-978-1773 is a Catch,clamping, manufactured by Hartwell Corporation, classified under FSC 5340 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5340-00-978-1773?

NSN 5340-00-978-1773 has 2 cross-referenced part numbers: H28-1 (Hartwell Corporation), 24L1-1 (Howmet Global Fastening Systems Inc Div Camloc Products).

What NSN replaces 5340-00-978-1773?

There are 5 known substitutes for 5340-00-978-1773: 5340-00-507-7409, 5342-00-975-6276, 4920-01-140-3941 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of H28-1?

Key specifications for H28-1: Operation Method: LEVER; Material: STEEL CORROSION RESISTING BODY; Material: STEEL COMP 4130 HOOK; Surface Treatment Document and Classification: QQ-P-416,TYPE 2,CLASS 2 FED SPEC ALL TREATMENT RESPONSES LINK. 12 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5340-00-978-1773 still in active supply?

NSN 5340-00-978-1773 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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