PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

30166Washer,flat

Moog Inc Div Moog Inc., Space and Defense - Salt Lake City · NSN 5310-00-166-3798 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-166-3798 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-166-3798. Primary manufacturer part number: 30166.
Features
  • Washer,flat — FSC 5310
  • Thickness: 0.022 INCHES MINIMUM AND 0.042 INCHES MAXIMUM IN
  • Hole Diameter: 0.193 INCHES MINIMUM AND 0.213 INCHES MAXIMUM IN
  • Material: STEEL COMP 301 OVERALL
  • Surface Treatment: PASSIVATE OVERALL
  • Material Document and Classification: MIL-S-5059,HARD MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Center Hole Shape Style: ROUND
  • Peripheral Shape Style: ROUND
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 301 Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-166-3798, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Moog Inc Div Moog Inc., Space and Defense - Salt Lake City. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-166-3798
Primary Part Number30166
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerMoog Inc Div Moog Inc., Space and Defense - Salt Lake City
StatusACTIVE
Thickness0.022 INCHES MINIMUM AND 0.042 INCHES MAXIMUM IN
Hole Diameter0.193 INCHES MINIMUM AND 0.213 INCHES MAXIMUM IN
MaterialSTEEL COMP 301 OVERALL
Surface TreatmentPASSIVATE OVERALL
Material Document and ClassificationMIL-S-5059,HARD MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Center Hole Shape StyleROUND
Peripheral Shape StyleROUND
Cross-Sectional Shape StyleRECTANGULAR
Overall Diameter0.300 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN
Heat TreatmentAS FABRICATED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
3110-00-100-0346 INTERCHANGEABLE
Cup,tapered Roller Bearing
6150-00-321-203130166 INTERCHANGEABLE
Wiring Harness
Vse Aviation, Inc.
5975-00-617-3458RG1 INTERCHANGEABLE
Cable Nipple,electrical
Sprague Electric Co World Hqs
5330-00-654-017130166 INTERCHANGEABLE
Packing Assembly
Brinkley Technology Group Llc Dba Hercules Manufacturing
5310-01-092-3741 INTERCHANGEABLE
Washer,shouldered
1680-01-152-4284 INTERCHANGEABLE
Pan,floor,seat
5331-01-588-776630166 INTERCHANGEABLE
O-Ring Set
Bourns Inc
5305-01-669-815430166 INTERCHANGEABLE
Screw,cap,socket Head
Sea-Bird Electronics, Inc Dba Sea-Bird Scientific
Cross-Reference Index
Part NumberManufacturer
30166 Moog Inc Div Moog Inc., Space and Defense - Salt Lake City (USA)
30166 E-Systems Inc Montek Div Fluid Controls Opns (USA)
30166 Mid-America Aerotech, Llc (USA)
30166 Moog Inc (USA)
Related Parts
3110-00-100-0346INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
6150-00-321-2031INTERCHANGEABLE
WIRING HARNESS
30166
5975-00-617-3458INTERCHANGEABLE
CABLE NIPPLE,ELECTRICAL
RG1
5330-00-654-0171INTERCHANGEABLE
PACKING ASSEMBLY
30166
5310-01-092-3741INTERCHANGEABLE
WASHER,SHOULDERED
1680-01-152-4284INTERCHANGEABLE
PAN,FLOOR,SEAT
5331-01-588-7766INTERCHANGEABLE
O-RING SET
30166
5305-01-669-8154INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
30166

Frequently Asked Questions

What is NSN 5310-00-166-3798?

NSN 5310-00-166-3798 is a Washer,flat, manufactured by Moog Inc Div Moog Inc., Space and Defense - Salt Lake City, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-166-3798?

NSN 5310-00-166-3798 has 4 cross-referenced part numbers: 30166 (Moog Inc Div Moog Inc., Space and Defense - Salt Lake City), 30166 (E-Systems Inc Montek Div Fluid Controls Opns), 30166 (Mid-America Aerotech, Llc), 30166 (Moog Inc).

What NSN replaces 5310-00-166-3798?

There are 8 known substitutes for 5310-00-166-3798: 3110-00-100-0346, 6150-00-321-2031, 5975-00-617-3458 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 30166?

Key specifications for 30166: Thickness: 0.022 INCHES MINIMUM AND 0.042 INCHES MAXIMUM IN; Hole Diameter: 0.193 INCHES MINIMUM AND 0.213 INCHES MAXIMUM IN; Material: STEEL COMP 301 OVERALL; Surface Treatment: PASSIVATE OVERALL. 10 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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