PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

7550554Tester,leak,linemen

Salisbury W H and Co Inc · NSN 4940-00-800-5388 · FSC 4940 · No Item Name Available
Verified by PartsTable
NSN 4940-00-800-5388 — this item is cataloged by the U.S. Government under National Stock Number 4940-00-800-5388. Primary manufacturer part number: 7550554.
Features
  • Tester,leak,linemen — FSC 4940
  • 3 verified cross-references
  • Primary manufacturer: Salisbury W H and Co Inc
Applications
  • Maintenance depot operations
  • Field repair and servicing
  • Vehicle maintenance facilities
General Description

The Tester,leak,linemen, cataloged under National Stock Number 4940-00-800-5388, is classified within Federal Supply Class 4940 (No Item Name Available) of the Maintenance and Repair Shop Equipment group. The primary manufacturer of record is Salisbury W H and Co Inc. This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameTester,leak,linemen
FSC / FSG4940 — No Item Name Available (FSG 49)
ManufacturersSalisbury W H and Co Inc (CAGE 78046); Skarshaug Testing Laboratory Inc (CAGE 27879); Army, United States Department of the Dba Rock Island Arsenal Jmtc (CAGE 19204)
Technical Specifications
ParameterValue
NSN4940-00-800-5388
Primary Part Number7550554
Item NameTester,leak,linemen
FSC / FSG4940 / 49 — No Item Name Available
ManufacturerSalisbury W H and Co Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6605-00-109-2707 INTERCHANGEABLE
Speed Transmitter,control
6240-00-132-5353 INTERCHANGEABLE
Lamp,incandescent
4940-00-221-1456 INTERCHANGEABLE
Mixer,liquid,revolving Shaft
6610-00-221-5718208020-0109 INTERCHANGEABLE
Mechanism Displacem
Jewell Instruments Llc
4930-00-253-24781142 INTERCHANGEABLE
Lubricating Gun,handheld
Lincoln Industrial Corporation Div Lincoln Industrial Corporation
4610-00-278-0021G2 INTERCHANGEABLE
Water Still,fuel Heated,lifesavi
Consolidated Machine Corp Dba Consolidated Sterilizer Systems Div Consolidated Sterilizer Systems
5330-00-285-6546 INTERCHANGEABLE
Gasket
6760-00-456-0422G2 INTERCHANGEABLE
Strip Set,retaining
Arriflex Corp
5330-00-640-8541 INTERCHANGEABLE
Ring,wiper
5930-00-669-74744T90006 INTERCHANGEABLE
Switch,thermostatic
Atlantic Research Corp
Cross-Reference Index
Part NumberManufacturer
7550554 PRIMARY Salisbury W H and Co Inc (USA)
G-2 Skarshaug Testing Laboratory Inc (USA)
7550554 Army, United States Department of the Dba Rock Island Arsenal Jmtc (USA)
Related Parts
6605-00-109-2707INTERCHANGEABLE
SPEED TRANSMITTER,CONTROL
6240-00-132-5353INTERCHANGEABLE
LAMP,INCANDESCENT
4940-00-221-1456INTERCHANGEABLE
MIXER,LIQUID,REVOLVING SHAFT
6610-00-221-5718INTERCHANGEABLE
MECHANISM DISPLACEM
208020-0109
4930-00-253-2478INTERCHANGEABLE
LUBRICATING GUN,HANDHELD
1142
4610-00-278-0021INTERCHANGEABLE
WATER STILL,FUEL HEATED,LIFESAVI
G2
5330-00-285-6546INTERCHANGEABLE
GASKET
6760-00-456-0422INTERCHANGEABLE
STRIP SET,RETAINING
G2
5330-00-640-8541INTERCHANGEABLE
RING,WIPER
5930-00-669-7474INTERCHANGEABLE
SWITCH,THERMOSTATIC
4T90006
2910-00-845-6770INTERCHANGEABLE
FILTER,FLUID
1701232C91
5962-01-229-4023INTERCHANGEABLE
MICROCIRCUIT,LINEAR
G2

Frequently Asked Questions

What is NSN 4940-00-800-5388?

NSN 4940-00-800-5388 is a Tester,leak,linemen, manufactured by Salisbury W H and Co Inc, classified under FSC 4940 (No Item Name Available). Status: active.

What are the part numbers for NSN 4940-00-800-5388?

NSN 4940-00-800-5388 has 3 cross-referenced part numbers: 7550554 (Salisbury W H and Co Inc), G-2 (Skarshaug Testing Laboratory Inc), 7550554 (Army, United States Department of the Dba Rock Island Arsenal Jmtc).

What NSN replaces 4940-00-800-5388?

There are 12 known substitutes for 4940-00-800-5388: 6605-00-109-2707, 6240-00-132-5353, 4940-00-221-1456 and 9 more. Verify interchangeability with system specifications before substitution.

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