PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

81598-1Keeper Assembly

Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok · NSN 5340-01-213-0776 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-01-213-0776 — this item is cataloged by the U.S. Government under National Stock Number 5340-01-213-0776. Primary manufacturer part number: 81598-1.
Features
  • Keeper Assembly — FSC 5340
  • Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
  • General Characteristics Item Description: CONSISTS OF NUT SST 18-8 PER MIL-N-25027; BRACKET SST 302 PER QQ-S-766; U-BOLT SST 304 PER QQ-S-763
  • Criticality Code Justification: ZZZY
  • 1 verified cross-reference
  • Primary manufacturer: Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok
Applications
  • General assembly and fastening
  • Structural repair and reinforcement
  • Facility maintenance hardware
General Description

The Keeper Assembly, cataloged under National Stock Number 5340-01-213-0776, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5340-01-213-0776
Primary Part Number81598-1
Item NameKeeper Assembly
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerCircor Instrumentation Technologies, Inc. Dba Hoke Gyrolok
StatusACTIVE
Reference Number Differentiating CharacteristicsMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
General Characteristics Item DescriptionCONSISTS OF NUT SST 18-8 PER MIL-N-25027; BRACKET SST 302 PER QQ-S-766; U-BOLT SST 304 PER QQ-S-763
Criticality Code JustificationZZZY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueEA
Verified Substitutes 1
5340-01-314-012881598-1 INTERCHANGEABLE
Bracket,double Angle
Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok
Cross-Reference Index
Part NumberManufacturer
81598-1 Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok (USA)
Related Parts
5340-01-314-0128INTERCHANGEABLE
BRACKET,DOUBLE ANGLE
81598-1

Frequently Asked Questions

What is NSN 5340-01-213-0776?

NSN 5340-01-213-0776 is a Keeper Assembly, manufactured by Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok, classified under FSC 5340 (No Item Name Available). Status: active.

What are the part numbers for NSN 5340-01-213-0776?

NSN 5340-01-213-0776 has 1 cross-referenced part number: 81598-1 (Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok).

What NSN replaces 5340-01-213-0776?

There is 1 known substitute for 5340-01-213-0776: 5340-01-314-0128. Verify interchangeability with system specifications before substitution.

What are the specifications of 81598-1?

Key specifications for 81598-1: Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS; General Characteristics Item Description: CONSISTS OF NUT SST 18-8 PER MIL-N-25027; BRACKET SST 302 PER QQ-S-766; U-BOLT SST 304 PER QQ-S-763; Criticality Code Justification: ZZZY. 3 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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