PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

S1021-4Clip,electrical

Interplex Nascal Inc · NSN 5999-00-816-6537 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-00-816-6537 — this item is cataloged by the U.S. Government under National Stock Number 5999-00-816-6537. Primary manufacturer part number: S1021-4.
Features
  • Clip,electrical — FSC 5999
  • Style Designator: GRID PLATE CLIP
  • Terminal Type and Quantity: 1 TAB, SOLDER LUG AXIALLY AT ONE END
  • Surface Treatment: NICKEL BODY
  • Material: COPPER ALLOY BODY
  • Hole Accommodation Diameter: 1.219 INCHES NOMINAL IN
  • Style Designator: GRID PLATE CLIP
  • Terminal Type and Quantity: 1 TAB, SOLDER LUG AXIALLY AT ONE END
Applications
  • Applications requiring Copper Alloy Body construction
General Description

The Clip,electrical, cataloged under National Stock Number 5999-00-816-6537, 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 Interplex Nascal Inc. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5999-00-816-6537
Primary Part NumberS1021-4
Item NameClip,electrical
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerInterplex Nascal Inc
StatusACTIVE
Style DesignatorGRID PLATE CLIP
Terminal Type and Quantity1 TAB, SOLDER LUG AXIALLY AT ONE END
Surface TreatmentNICKEL BODY
MaterialCOPPER ALLOY BODY
Hole Accommodation Diameter1.219 INCHES NOMINAL IN
Style DesignatorGRID PLATE CLIP
Terminal Type and Quantity1 TAB, SOLDER LUG AXIALLY AT ONE END
Surface TreatmentNICKEL BODY
MaterialCOPPER ALLOY BODY
Hole Accommodation Diameter1.219 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
7510-00-551-98207000001179 INTERCHANGEABLE
Tape,pressure Sensitive Adhesive
3m Company
5961-00-990-0104919131-1 INTERCHANGEABLE
Retainer,semiconductor Device
Raytheon Company Dba Raytheon
5120-01-089-3926S-1021-4 INTERCHANGEABLE
Removal Tool,fitting Insert
Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution
Cross-Reference Index
Part NumberManufacturer
9191311 Us Army Aviation and Missile Command (USA)
S1021-4 PRIMARY Interplex Nascal Inc (USA)
Related Parts
7510-00-551-9820INTERCHANGEABLE
TAPE,PRESSURE SENSITIVE ADHESIVE
7000001179
5961-00-990-0104INTERCHANGEABLE
RETAINER,SEMICONDUCTOR DEVICE
919131-1
5120-01-089-3926INTERCHANGEABLE
REMOVAL TOOL,FITTING INSERT
S-1021-4

Frequently Asked Questions

What is NSN 5999-00-816-6537?

NSN 5999-00-816-6537 is a Clip,electrical, manufactured by Interplex Nascal Inc, classified under FSC 5999 (No Item Name Available). Status: active.

What are the part numbers for NSN 5999-00-816-6537?

NSN 5999-00-816-6537 has 2 cross-referenced part numbers: 9191311 (Us Army Aviation and Missile Command), S1021-4 (Interplex Nascal Inc).

What NSN replaces 5999-00-816-6537?

There are 3 known substitutes for 5999-00-816-6537: 7510-00-551-9820, 5961-00-990-0104, 5120-01-089-3926. Verify interchangeability with system specifications before substitution.

What are the specifications of S1021-4?

Key specifications for S1021-4: Overall Length: 1.813 INCHES NOMINAL IN; Overall Height: 0.500 INCHES NOMINAL IN; Style Designator: GRID PLATE CLIP; Terminal Type and Quantity: 1 TAB, SOLDER LUG AXIALLY AT ONE END. 18 total characteristics are documented in the Federal Logistics Information System.

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