PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

9975558Cover,electrical Connector

Us Army Aviation and Missile Command · NSN 5935-00-727-3578 · FSC 5935 · No Item Name Available
Verified by PartsTable
NSN 5935-00-727-3578 — this item is cataloged by the U.S. Government under National Stock Number 5935-00-727-3578. Primary manufacturer part number: 9975558.
Features
  • Cover,electrical Connector — FSC 5935
  • Overall Diameter: 0.865 INCHES MINIMUM AND 0.885 INCHES MAXIMUM IN
  • Thread Series Designator: UNEF
  • Material: COPPER ALLOY
  • Surface Treatment: SILVER
  • Style Designator: INTERNAL THREAD W/CHAIN OR ROPE
  • Thread Direction: RIGHT-HAND
  • Eye Inside Diameter: 0.144 INCHES NOMINAL IN
Applications
  • Electrical interconnection
  • Signal interface mating
  • Quick-disconnect coupling
  • Applications requiring Copper Alloy construction
General Description

The Cover,electrical Connector, cataloged under National Stock Number 5935-00-727-3578, is classified within Federal Supply Class 5935 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Us Army Aviation and Missile Command. Government technical data includes 15 verified specifications, 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5935-00-727-3578
Primary Part Number9975558
Item NameCover,electrical Connector
FSC / FSG5935 / 59 — No Item Name Available
ManufacturerUs Army Aviation and Missile Command
StatusCANCELLED
Overall Diameter0.865 INCHES MINIMUM AND 0.885 INCHES MAXIMUM IN
Thread Series DesignatorUNEF
MaterialCOPPER ALLOY
Surface TreatmentSILVER
Style DesignatorINTERNAL THREAD W/CHAIN OR ROPE
Thread DirectionRIGHT-HAND
Eye Inside Diameter0.144 INCHES NOMINAL IN
Mounting Facility Type and Quantity1 THREADED COUPLING
Attachment Feature Length2.240 INCHES MINIMUM AND 2.260 INCHES MAXIMUM IN
Precious Material and LocationBODY SURFACE SILVER
Thread Class2B
Body Height0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN
Size DesignationHN
Nominal Thread Size0.750 INCHES IN
Furnished ItemsBEAD CHAIN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
6685-00-031-829510250 INTERCHANGEABLE
Pivot
Meggitt (new Hampshire), Inc
6680-00-099-0362 INTERCHANGEABLE
Base,counter Assembly
5133-00-227-5978 INTERCHANGEABLE
Drill,twist
5120-00-243-90725120-00-243-9072 INTERCHANGEABLE
Vise,bench and Pipe
General Services Administration Federal Supply Service
5930-00-296-624310250 INTERCHANGEABLE
Switch,push
Eaton Corp Opns & Technical Center
4820-00-470-0600VF033B INTERCHANGEABLE
Disk,valve
Itw Food Equipment Group Llc Dba Gaylord Industries
5840-00-847-780210250 INTERCHANGEABLE
Electronic,subassem
Lockheed Martin Corp Dba Lockheed Martin Div Mst - Eagan
5945-00-919-7749700-2 INTERCHANGEABLE
Relay,electromagnetic
Te Connectivity Corporation
5365-01-065-5832 INTERCHANGEABLE
Spacer,sleeve
5365-01-089-583610250 INTERCHANGEABLE
Plug,machine Thread
Weldon Pump Llc
Cross-Reference Index
Part NumberManufacturer
1H732 Lax Electronics, Inc. Dba Automatic Connector Div Automatic Connector (USA)
357-8668-000 Rockwell Collins, Inc. Div Collins Aerospace - Mission Systems (USA)
9975558 PRIMARY Us Army Aviation and Missile Command (USA)
357-9850-000 Rockwell Collins, Inc. Div Collins Aerospace - Mission Systems (USA)
10250 Amphenol Corporation Div Amphenol Rf (USA)
Related Parts
6685-00-031-8295INTERCHANGEABLE
PIVOT
10250
6680-00-099-0362INTERCHANGEABLE
BASE,COUNTER ASSEMBLY
5133-00-227-5978INTERCHANGEABLE
DRILL,TWIST
5120-00-243-9072INTERCHANGEABLE
VISE,BENCH AND PIPE
5120-00-243-9072
5930-00-296-6243INTERCHANGEABLE
SWITCH,PUSH
10250
4820-00-470-0600INTERCHANGEABLE
DISK,VALVE
VF033B
5840-00-847-7802INTERCHANGEABLE
ELECTRONIC,SUBASSEM
10250
5945-00-919-7749INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
700-2
5365-01-065-5832INTERCHANGEABLE
SPACER,SLEEVE
5365-01-089-5836INTERCHANGEABLE
PLUG,MACHINE THREAD
10250
5310-01-213-4165INTERCHANGEABLE
NUT,PLAIN,SLOTTED,HEXAGON
X-1421
5330-01-260-4735INTERCHANGEABLE
GASKET
10-250

Frequently Asked Questions

What is NSN 5935-00-727-3578?

NSN 5935-00-727-3578 is a Cover,electrical Connector, manufactured by Us Army Aviation and Missile Command, classified under FSC 5935 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5935-00-727-3578?

NSN 5935-00-727-3578 has 5 cross-referenced part numbers: 1H732 (Lax Electronics, Inc. Dba Automatic Connector Div Automatic Connector), 357-8668-000 (Rockwell Collins, Inc. Div Collins Aerospace - Mission Systems), 9975558 (Us Army Aviation and Missile Command), 357-9850-000 (Rockwell Collins, Inc. Div Collins Aerospace - Mission Systems), 10250 (Amphenol Corporation Div Amphenol Rf).

What NSN replaces 5935-00-727-3578?

There are 12 known substitutes for 5935-00-727-3578: 6685-00-031-8295, 6680-00-099-0362, 5133-00-227-5978 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 9975558?

Key specifications for 9975558: Overall Diameter: 0.865 INCHES MINIMUM AND 0.885 INCHES MAXIMUM IN; Thread Series Designator: UNEF; Material: COPPER ALLOY; Surface Treatment: SILVER. 15 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5935-00-727-3578 still in active supply?

NSN 5935-00-727-3578 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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