PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MK-1Mounting Kit,helmet Light

Seitz Scientific Industries, Inc. · NSN 8475-01-507-0311 · FSC 8475 · No Item Name Available
Verified by PartsTable
NSN 8475-01-507-0311 — this item is cataloged by the U.S. Government under National Stock Number 8475-01-507-0311. Primary manufacturer part number: MK-1.
Features
  • Mounting Kit,helmet Light — FSC 8475
  • 1 verified cross-reference
  • Primary manufacturer: Seitz Scientific Industries, Inc.
Applications
  • Area illumination
  • Indicator and warning display
  • Navigation and signal lighting
General Description

The Mounting Kit,helmet Light, cataloged under National Stock Number 8475-01-507-0311, is classified within Federal Supply Class 8475 (No Item Name Available) of the Clothing, Individual Equipment, and Insignia group. The primary manufacturer of record is Seitz Scientific Industries, Inc.. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN8475-01-507-0311
Primary Part NumberMK-1
Item NameMounting Kit,helmet Light
FSC / FSG8475 / 84 — No Item Name Available
ManufacturerSeitz Scientific Industries, Inc.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
4920-00-089-102562182-200 INTERCHANGEABLE
Test Stand,hydraulic System Comp
Hydraulics International, Inc. Dba Hydraulics International Inc
6140-00-191-8506A-A-55439-3-1-475-D INTERCHANGEABLE
Battery,storage
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
4920-00-200-19991315-100 INTERCHANGEABLE
Test Stand,hydraulic System Comp
Curtiss-Wright Flow Control Corporation Dba Farris Engineering Div Curtiss-Wright Valves Division- Farris
6910-00-216-5160 INTERCHANGEABLE
Training Aid,automa
2320-00-360-5443 INTERCHANGEABLE
Truck,tank
4931-00-738-66597910378 INTERCHANGEABLE
Test Set,fire Control Subsystem
Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate
5950-01-050-5428 INTERCHANGEABLE
Coil,electrical
5220-01-264-6780NCG001 INTERCHANGEABLE
Gage,profile
Little Rhody Machine Repair Inc
5120-01-426-653810102 INTERCHANGEABLE
Puller,universal Joint
Tiger Tool Intl Inc
6740-01-426-9617 INTERCHANGEABLE
Processing Machine,photographic
Cross-Reference Index
Part NumberManufacturer
MK-1 PRIMARY Seitz Scientific Industries, Inc. (USA)
Related Parts
4920-00-089-1025INTERCHANGEABLE
TEST STAND,HYDRAULIC SYSTEM COMP
62182-200
6140-00-191-8506INTERCHANGEABLE
BATTERY,STORAGE
A-A-55439-3-1-475-D
4920-00-200-1999INTERCHANGEABLE
TEST STAND,HYDRAULIC SYSTEM COMP
1315-100
6910-00-216-5160INTERCHANGEABLE
TRAINING AID,AUTOMA
2320-00-360-5443INTERCHANGEABLE
TRUCK,TANK
4931-00-738-6659INTERCHANGEABLE
TEST SET,FIRE CONTROL SUBSYSTEM
7910378
5950-01-050-5428INTERCHANGEABLE
COIL,ELECTRICAL
5220-01-264-6780INTERCHANGEABLE
GAGE,PROFILE
NCG001
5120-01-426-6538INTERCHANGEABLE
PULLER,UNIVERSAL JOINT
10102
6740-01-426-9617INTERCHANGEABLE
PROCESSING MACHINE,PHOTOGRAPHIC
5855-01-601-5662INTERCHANGEABLE
CLEANING KIT,OPTICAL INSTRUMENT

Frequently Asked Questions

What is NSN 8475-01-507-0311?

NSN 8475-01-507-0311 is a Mounting Kit,helmet Light, manufactured by Seitz Scientific Industries, Inc., classified under FSC 8475 (No Item Name Available). Status: active.

What are the part numbers for NSN 8475-01-507-0311?

NSN 8475-01-507-0311 has 1 cross-referenced part number: MK-1 (Seitz Scientific Industries, Inc.).

What NSN replaces 8475-01-507-0311?

There are 11 known substitutes for 8475-01-507-0311: 4920-00-089-1025, 6140-00-191-8506, 4920-00-200-1999 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MK-1?

Key specifications for MK-1: Special Features: MOUNTS MIKE LIGHTS TO VARIOUS AVIATOR MICROPHONES; INCLUDES AN ASSORTMENT OF CLIPS; USED ON AN AIRCREW HELMET. 1 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com