PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

HW3121Adapter,fastener Installation to

Zephyr Manufacturing Co., Inc. Dba Zephyr Manufacturing Co Inc · NSN 5120-00-605-9426 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-605-9426 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-605-9426. Primary manufacturer part number: HW3121.
Features
  • Adapter,fastener Installation to — FSC 5120
  • General Characteristics Item Description: WRENCH TYPE; FOR 5/16 IN. FLUSH HEAD VISU-LOK FASTENERS IN
  • 5 verified cross-references
  • Primary manufacturer: Zephyr Manufacturing Co., Inc. Dba Zephyr Manufacturing Co Inc
Applications
  • Field maintenance and repair
  • Facility maintenance operations
  • General-purpose hand tools
General Description

The Adapter,fastener Installation to, cataloged under National Stock Number 5120-00-605-9426, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Zephyr Manufacturing Co., Inc. Dba Zephyr Manufacturing Co Inc. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5120-00-605-9426
Primary Part NumberHW3121
Item NameAdapter,fastener Installation to
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerZephyr Manufacturing Co., Inc. Dba Zephyr Manufacturing Co Inc
StatusCANCELLED
General Characteristics Item DescriptionWRENCH TYPE; FOR 5/16 IN. FLUSH HEAD VISU-LOK FASTENERS IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
5935-00-280-22191JC2189-22 INTERCHANGEABLE
Backshell,electrical Connector
Westinghouse Electric Corp
4730-01-493-6936MH10 INTERCHANGEABLE
Clamp,hose
Dvcc, Llc
5120-01-611-75603750-00-NIB-0007 INTERCHANGEABLE
Hoe,mortar Mixing
Keystone Vocational Services Inc
Cross-Reference Index
Part NumberManufacturer
MH-10 Monogram Aerospace Fasteners, Inc Dba Trimas Aerospace Div Monogram Aerospace Fasteners (USA)
MLH-10 Monogram Aerospace Fasteners, Inc Dba Trimas Aerospace Div Monogram Aerospace Fasteners (USA)
HW3121 PRIMARY Zephyr Manufacturing Co., Inc. Dba Zephyr Manufacturing Co Inc (USA)
HW3121 Lok-Fast Inc (USA)
MLH-10 Fairchild Fasteners Europe - Vsd Gmbh (DEU)
Related Parts
5935-00-280-2219INTERCHANGEABLE
BACKSHELL,ELECTRICAL CONNECTOR
1JC2189-22
4730-01-493-6936INTERCHANGEABLE
CLAMP,HOSE
MH10
5120-01-611-7560INTERCHANGEABLE
HOE,MORTAR MIXING
3750-00-NIB-0007

Frequently Asked Questions

What is NSN 5120-00-605-9426?

NSN 5120-00-605-9426 is a Adapter,fastener Installation to, manufactured by Zephyr Manufacturing Co., Inc. Dba Zephyr Manufacturing Co Inc, classified under FSC 5120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5120-00-605-9426?

NSN 5120-00-605-9426 has 5 cross-referenced part numbers: MH-10 (Monogram Aerospace Fasteners, Inc Dba Trimas Aerospace Div Monogram Aerospace Fasteners), MLH-10 (Monogram Aerospace Fasteners, Inc Dba Trimas Aerospace Div Monogram Aerospace Fasteners), HW3121 (Zephyr Manufacturing Co., Inc. Dba Zephyr Manufacturing Co Inc), HW3121 (Lok-Fast Inc), MLH-10 (Fairchild Fasteners Europe - Vsd Gmbh).

What NSN replaces 5120-00-605-9426?

There are 3 known substitutes for 5120-00-605-9426: 5935-00-280-2219, 4730-01-493-6936, 5120-01-611-7560. Verify interchangeability with system specifications before substitution.

What are the specifications of HW3121?

Key specifications for HW3121: End Item Identification: LOK-FAST NO. HWF312 HAND INSTALLING TOOL; General Characteristics Item Description: WRENCH TYPE; FOR 5/16 IN. FLUSH HEAD VISU-LOK FASTENERS IN. 2 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-00-605-9426 still in active supply?

NSN 5120-00-605-9426 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.
PartsTable Design LLC · partstable.com