PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

257476-1Shielding Gasket,electronic

L3harris Technologies, Inc Div Space & Airborne Systems · NSN 5999-01-574-4683 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-01-574-4683 — this item is cataloged by the U.S. Government under National Stock Number 5999-01-574-4683. Primary manufacturer part number: 257476-1.
Features
  • Shielding Gasket,electronic — FSC 5999
  • 3 verified cross-references
  • Primary manufacturer: L3harris Technologies, Inc Div Space & Airborne Systems
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The Shielding Gasket,electronic, cataloged under National Stock Number 5999-01-574-4683, is classified within Federal Supply Class 5999 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is L3harris Technologies, Inc Div Space & Airborne Systems. This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Catalog Facts
Item NameShielding Gasket,electronic
FSC / FSG5999 — No Item Name Available (FSG 59)
ManufacturersL3harris Technologies, Inc Div Space & Airborne Systems (CAGE 24930); Technical Wire Products, Llc Dba Twp (CAGE 07700)
Technical Specifications
ParameterValue
NSN5999-01-574-4683
Primary Part Number257476-1
Item NameShielding Gasket,electronic
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerL3harris Technologies, Inc Div Space & Airborne Systems
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeJ
Verified Substitutes 12
5999-00-497-5862134304-11 INTERCHANGEABLE
Shielding Gasket,electronic
L3harris Technologies, Inc Div Space & Airborne Systems
5999-00-497-5863134304-12 INTERCHANGEABLE
Shielding Gasket,electronic
L3harris Technologies, Inc Div Space & Airborne Systems
5999-00-497-5864134304-13 INTERCHANGEABLE
Shielding Gasket,electronic
L3harris Technologies, Inc Div Space & Airborne Systems
5999-00-497-5865134304-14 INTERCHANGEABLE
Shielding Gasket,electronic
L3harris Technologies, Inc Div Space & Airborne Systems
5999-00-497-5866134304-15 INTERCHANGEABLE
Shielding Gasket,electronic
L3harris Technologies, Inc Div Space & Airborne Systems
5999-00-497-5867134304-16 INTERCHANGEABLE
Shielding Gasket,electronic
L3harris Technologies, Inc Div Space & Airborne Systems
5999-00-497-5868134304-17 INTERCHANGEABLE
Shielding Gasket,electronic
L3harris Technologies, Inc Div Space & Airborne Systems
5999-00-497-5869134304-18 INTERCHANGEABLE
Shielding Gasket,electronic
L3harris Technologies, Inc Div Space & Airborne Systems
5940-00-681-8184 INTERCHANGEABLE
Terminal,lug
5999-01-156-6739134304-3 INTERCHANGEABLE
Shielding Gasket,electronic
L3harris Technologies, Inc Div Space & Airborne Systems
Cross-Reference Index
Part NumberManufacturer
299476-1 L3harris Technologies, Inc Div Space & Airborne Systems (USA)
257476-1 PRIMARY L3harris Technologies, Inc Div Space & Airborne Systems (USA)
43-90075 Technical Wire Products, Llc Dba Twp (USA)
Related Parts
5999-00-497-5862INTERCHANGEABLE
SHIELDING GASKET,ELECTRONIC
134304-11
5999-00-497-5863INTERCHANGEABLE
SHIELDING GASKET,ELECTRONIC
134304-12
5999-00-497-5864INTERCHANGEABLE
SHIELDING GASKET,ELECTRONIC
134304-13
5999-00-497-5865INTERCHANGEABLE
SHIELDING GASKET,ELECTRONIC
134304-14
5999-00-497-5866INTERCHANGEABLE
SHIELDING GASKET,ELECTRONIC
134304-15
5999-00-497-5867INTERCHANGEABLE
SHIELDING GASKET,ELECTRONIC
134304-16
5999-00-497-5868INTERCHANGEABLE
SHIELDING GASKET,ELECTRONIC
134304-17
5999-00-497-5869INTERCHANGEABLE
SHIELDING GASKET,ELECTRONIC
134304-18
5940-00-681-8184INTERCHANGEABLE
TERMINAL,LUG
5999-01-156-6739INTERCHANGEABLE
SHIELDING GASKET,ELECTRONIC
134304-3
5999-01-156-8017INTERCHANGEABLE
SHIELDING GASKET,ELECTRONIC
134304-4
2541-01-733-0942INTERCHANGEABLE
ARMOR,SUPPLEMENTAL,SMALL ARMS-FR
4390075

Frequently Asked Questions

What is NSN 5999-01-574-4683?

NSN 5999-01-574-4683 is a Shielding Gasket,electronic, manufactured by L3harris Technologies, Inc Div Space & Airborne Systems, classified under FSC 5999 (No Item Name Available). Status: active.

What are the part numbers for NSN 5999-01-574-4683?

NSN 5999-01-574-4683 has 3 cross-referenced part numbers: 299476-1 (L3harris Technologies, Inc Div Space & Airborne Systems), 257476-1 (L3harris Technologies, Inc Div Space & Airborne Systems), 43-90075 (Technical Wire Products, Llc Dba Twp).

What NSN replaces 5999-01-574-4683?

There are 12 known substitutes for 5999-01-574-4683: 5999-00-497-5862, 5999-00-497-5863, 5999-00-497-5864 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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