PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

65138Spacer,ring

Lockheed Martin Corporation · NSN 5365-01-571-8821 · FSC 5365 · No Item Name Available
Verified by PartsTable
NSN 5365-01-571-8821 — this item is cataloged by the U.S. Government under National Stock Number 5365-01-571-8821. Primary manufacturer part number: 65138.
Features
  • Spacer,ring — FSC 5365
  • 1 verified cross-reference
  • Primary manufacturer: Lockheed Martin Corporation
Applications
  • General assembly and fastening
  • Structural repair and reinforcement
  • Facility maintenance hardware
General Description

The Spacer,ring, cataloged under National Stock Number 5365-01-571-8821, is classified within Federal Supply Class 5365 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Lockheed Martin Corporation. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5365-01-571-8821
Primary Part Number65138
Item NameSpacer,ring
FSC / FSG5365 / 53 — No Item Name Available
ManufacturerLockheed Martin Corporation
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
9905-00-802-699465138 INTERCHANGEABLE
Plate,identification
L3harris Interstate Electronics Corporation
2590-01-049-30861002475 INTERCHANGEABLE
Cap,filler Opening
Tld Ace Corp Div Tld Ace
5930-01-190-12122199104 INTERCHANGEABLE
Switch,toggle
Bergstrom Inc
6685-01-248-73342-5001 INTERCHANGEABLE
Gage,differential,dial Indicatin
Dwyer Instruments Inc
Cross-Reference Index
Part NumberManufacturer
65138 PRIMARY Lockheed Martin Corporation (USA)
Related Parts
9905-00-802-6994INTERCHANGEABLE
PLATE,IDENTIFICATION
65138
2590-01-049-3086INTERCHANGEABLE
CAP,FILLER OPENING
1002475
5930-01-190-1212INTERCHANGEABLE
SWITCH,TOGGLE
2199104
6685-01-248-7334INTERCHANGEABLE
GAGE,DIFFERENTIAL,DIAL INDICATIN
2-5001

Frequently Asked Questions

What is NSN 5365-01-571-8821?

NSN 5365-01-571-8821 is a Spacer,ring, manufactured by Lockheed Martin Corporation, classified under FSC 5365 (No Item Name Available). Status: active.

What are the part numbers for NSN 5365-01-571-8821?

NSN 5365-01-571-8821 has 1 cross-referenced part number: 65138 (Lockheed Martin Corporation).

What NSN replaces 5365-01-571-8821?

There are 4 known substitutes for 5365-01-571-8821: 9905-00-802-6994, 2590-01-049-3086, 5930-01-190-1212 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 65138?

Key specifications for 65138: Part Name Assigned by Controlling Agency: SPACER,RING; End Item Identification: U-2. 2 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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