PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

208-8Nut,plain,hexagon

Lenz Inc Dba the Lenz Company · NSN 5310-00-691-0026 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-691-0026 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-691-0026. Primary manufacturer part number: 208-8.
Features
  • Nut,plain,hexagon — FSC 5310
  • Surface Treatment Document and Classification: MIL-16232 TY 2 CL 4 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
  • Material Document and Classification: FED STD 66 FED STD SINGLE MATERIAL RESPONSE OR QQ-S-637 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Material: STEEL COMP 1118 OVERALL
  • Thread Series: UNF
  • Nominal Thread Size: 0.875 INCHES IN
  • Bearing Surface Type: CHAMFERED OR WASHER FACED
  • Thread Quantity Per Inch: 14
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 1118 Overall construction
General Description

The Nut,plain,hexagon, cataloged under National Stock Number 5310-00-691-0026, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Lenz Inc Dba the Lenz Company. Government technical data includes 13 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-691-0026
Primary Part Number208-8
Item NameNut,plain,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerLenz Inc Dba the Lenz Company
StatusACTIVE
Surface Treatment Document and ClassificationMIL-16232 TY 2 CL 4 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
Material Document and ClassificationFED STD 66 FED STD SINGLE MATERIAL RESPONSE OR QQ-S-637 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MaterialSTEEL COMP 1118 OVERALL
Thread SeriesUNF
Nominal Thread Size0.875 INCHES IN
Bearing Surface TypeCHAMFERED OR WASHER FACED
Thread Quantity Per Inch14
Width Across Flats1.125 INCHES NOMINAL IN
Thread DirectionRIGHT-HAND
Thread Class2B
Surface TreatmentPHOSPHATE ZINC OVERALL
Nut StyleHEXAGON
Nut Height0.359 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6810-00-264-6544 INTERCHANGEABLE
Potassium Dichromate
5340-00-295-60312088 INTERCHANGEABLE
Strap,retaining
Raco, a Division of Hubbell Incorporated(delaware)
5330-00-446-89022088 INTERCHANGEABLE
Packing Assembly
Northrop Grumman Systems Corporation Div Marine Systems
4510-00-606-53262283 INTERCHANGEABLE
Toilet,aircraft
Mag Aerospace Industries, Llc Div Safran Cabins
4720-00-670-603710862173 INTERCHANGEABLE
Hose,nonmetallic
U S Army Tank Automotive Command Amsta-Im-Mm
5340-00-834-8426 INTERCHANGEABLE
Bumper
2940-00-869-570142088 INTERCHANGEABLE
Filter Element,intake Air Cleane
Wix Corp
3120-00-956-8891521-208-080-100-000 INTERCHANGEABLE
Bushing,sleeve
Emerson Automation Solutions Final Control Us Lp
4820-01-096-9216 INTERCHANGEABLE
Valve,regulating,fluid Pressure
5895-01-106-0136 INTERCHANGEABLE
Attenuator,shelf,pr
Cross-Reference Index
Part NumberManufacturer
208-8 PRIMARY Lenz Inc Dba the Lenz Company (USA)
1787815PC4 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
Related Parts
6810-00-264-6544INTERCHANGEABLE
POTASSIUM DICHROMATE
5340-00-295-6031INTERCHANGEABLE
STRAP,RETAINING
2088
5330-00-446-8902INTERCHANGEABLE
PACKING ASSEMBLY
2088
4510-00-606-5326INTERCHANGEABLE
TOILET,AIRCRAFT
2283
4720-00-670-6037INTERCHANGEABLE
HOSE,NONMETALLIC
10862173
5340-00-834-8426INTERCHANGEABLE
BUMPER
2940-00-869-5701INTERCHANGEABLE
FILTER ELEMENT,INTAKE AIR CLEANE
42088
3120-00-956-8891INTERCHANGEABLE
BUSHING,SLEEVE
521-208-080-100-000
4820-01-096-9216INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
5895-01-106-0136INTERCHANGEABLE
ATTENUATOR,SHELF,PR
6850-01-197-1649INTERCHANGEABLE
BRUSH PLATING SOLUTION,COPPER
80208820
2530-01-226-8047INTERCHANGEABLE
CYLINDER,HYDRAULIC BRAKE,MASTER

Frequently Asked Questions

What is NSN 5310-00-691-0026?

NSN 5310-00-691-0026 is a Nut,plain,hexagon, manufactured by Lenz Inc Dba the Lenz Company, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-691-0026?

NSN 5310-00-691-0026 has 2 cross-referenced part numbers: 208-8 (Lenz Inc Dba the Lenz Company), 1787815PC4 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).

What NSN replaces 5310-00-691-0026?

There are 12 known substitutes for 5310-00-691-0026: 6810-00-264-6544, 5340-00-295-6031, 5330-00-446-8902 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 208-8?

Key specifications for 208-8: Surface Treatment Document and Classification: MIL-16232 TY 2 CL 4 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Material Document and Classification: FED STD 66 FED STD SINGLE MATERIAL RESPONSE OR QQ-S-637 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Material: STEEL COMP 1118 OVERALL; Thread Series: UNF. 13 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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