NSN 5310-01-644-0660 · NIIN 016440660 · Part number 05ZR
Endries International, Inc. Dba Servtonics, an Endries International, Inc. · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 1SE17
Government record, cited
NSN 5310-01-644-0660 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-644-0660. Manufacturer of record part number: 05ZR.
Also searched as5310-01-644-0660 ·
5310016440660 ·
NIIN 016440660 ·
01-644-0660 ·
FSC 5310 Nuts and Washers · CAGE 1SE17 · 05ZR
Nearby stock numbers← 5310-01-644-0605 Nut Assembly, Self-Locking, Gang C
·
5310-01-644-0683 Nut, Plain, Clinch →
5310-01-644-0660 — Nuts and Washers
Features
Washer Blank — FSC 5310
Overall Diameter: 0.610 INCHES NOMINAL IN
Cross-Sectional Shape Style: BLANK RECTANGULAR
Peripheral Shape Style: ROUND
Thickness: 0.030 INCHES MINIMUM AND 0.040 INCHES MAXIMUM IN
1 manufacturer part number on file
Manufacturer of record: Endries International, Inc. Dba Servtonics, an Endries International, Inc.
Identification
NSN: 5310-01-644-0660
NIIN: 016440660
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: 05ZR
Manufacturer: Endries International, Inc. Dba Servtonics, an Endries International, Inc.
General Description
The Washer Blank, cataloged under National Stock Number 5310-01-644-0660, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Endries International, Inc. Dba Servtonics, an Endries International, Inc.. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
5310-01-644-0660
Primary Part Number
05ZR
Item Name
Washer Blank
FSC / FSG
5310 / 53 — Nuts and Washers
Manufacturer
Endries International, Inc. Dba Servtonics, an Endries International, Inc.
Endries International, Inc. Dba Servtonics, an Endries International, Inc. (USA)
No interchangeability data on file.
Other items in FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040
5310-00-000-0040 · Item name not on file
5310-00-000-0077
NUT,PLAIN,ROUND
5310-00-000-0079
WASHER,FLAT
5310-00-000-0079
WASHER,FLAT
5310-00-000-1146
5310-00-000-1146 · Item name not on file
5310-00-000-3815
5310-00-000-3815 · Item name not on file
5310-00-000-4532
5310-00-000-4532 · Item name not on file
5310-00-000-4540
5310-00-000-4540 · Item name not on file
Frequently Asked Questions
What is NSN 5310-01-644-0660?
NSN 5310-01-644-0660 is a Washer Blank, manufactured by Endries International, Inc. Dba Servtonics, an Endries International, Inc., classified under FSC 5310, Nuts and Washers. Status: active.
What part numbers are listed for NSN 5310-01-644-0660?
NSN 5310-01-644-0660 has 1 manufacturer part number on file: 05ZR (Endries International, Inc. Dba Servtonics, an Endries International, Inc.).
What are the specifications of 05ZR?
Key specifications for 05ZR: Overall Diameter: 0.610 INCHES NOMINAL IN; Cross-Sectional Shape Style: BLANK RECTANGULAR; Peripheral Shape Style: ROUND; Part Name Assigned by Controlling Agency: WASHER,.312 EXT STAR. 4 specifications are documented in the U.S. Government catalog.
Is NSN 5310-01-644-0660 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.