PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

18115Spacer,sleeve

Hdt Expeditionary Systems Inc · NSN 5365-01-053-2590 · FSC 5365 · No Item Name Available
Verified by PartsTable
NSN 5365-01-053-2590 — this item is cataloged by the U.S. Government under National Stock Number 5365-01-053-2590. Primary manufacturer part number: 18115.
Features
  • Spacer,sleeve — FSC 5365
  • Material: STEEL OVERALL
  • Corner Shape: SQUARE ALL CORNERS
  • Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES
  • Body Outside Diameter: 0.5000 INCHES NOMINAL IN
  • Body Inside Diameter: 0.3840 INCHES NOMINAL IN
  • 3 verified cross-references
  • Primary manufacturer: Hdt Expeditionary Systems Inc
Applications
  • Applications requiring Steel Overall construction
General Description

The Spacer,sleeve, cataloged under National Stock Number 5365-01-053-2590, is classified within Federal Supply Class 5365 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Hdt Expeditionary Systems Inc. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5365-01-053-2590
Primary Part Number18115
Item NameSpacer,sleeve
FSC / FSG5365 / 53 — No Item Name Available
ManufacturerHdt Expeditionary Systems Inc
StatusACTIVE
MaterialSTEEL OVERALL
Corner ShapeSQUARE ALL CORNERS
Style DesignatorSOLID, PLAIN, NO OUTSIDE FLANGES
Body Outside Diameter0.5000 INCHES NOMINAL IN
Body Inside Diameter0.3840 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
4730-00-119-9861 INTERCHANGEABLE
Tee,pipe
6750-00-194-330684155 INTERCHANGEABLE
Mount,film Slide,photographic
Rexham Graphics Inc
5340-00-513-594518115 INTERCHANGEABLE
Clamp,instrument Mounting
Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution
1650-00-724-083218115 INTERCHANGEABLE
Stop,valve Spool
Cadillac Gage Textron Inc.
5961-00-837-7262 INTERCHANGEABLE
Transistor
5930-01-137-5406 INTERCHANGEABLE
Switch,code Indicating Wheel
6240-01-480-21701G4014 INTERCHANGEABLE
Lamp,fluorescent
Technical Consumer Products, Inc.
5930-01-549-784222550SRV INTERCHANGEABLE
Switch,push
Generac Mobile Products, Llc
6515-01-586-2322MMGWC-0005L INTERCHANGEABLE
Ground Wire,surgical Instrument
Healthmark Industries Co., Inc.
Cross-Reference Index
Part NumberManufacturer
18115 Drs Environmental Systems Inc (USA)
18115 Engineered Air Systems, Inc. Dba Drs Sustainment Systems (USA)
18115 PRIMARY Hdt Expeditionary Systems Inc (USA)
Related Parts
4730-00-119-9861INTERCHANGEABLE
TEE,PIPE
6750-00-194-3306INTERCHANGEABLE
MOUNT,FILM SLIDE,PHOTOGRAPHIC
84155
5340-00-513-5945INTERCHANGEABLE
CLAMP,INSTRUMENT MOUNTING
18115
1650-00-724-0832INTERCHANGEABLE
STOP,VALVE SPOOL
18115
5961-00-837-7262INTERCHANGEABLE
TRANSISTOR
5930-01-137-5406INTERCHANGEABLE
SWITCH,CODE INDICATING WHEEL
6240-01-480-2170INTERCHANGEABLE
LAMP,FLUORESCENT
1G4014
5930-01-549-7842INTERCHANGEABLE
SWITCH,PUSH
22550SRV
6515-01-586-2322INTERCHANGEABLE
GROUND WIRE,SURGICAL INSTRUMENT
MMGWC-0005L

Frequently Asked Questions

What is NSN 5365-01-053-2590?

NSN 5365-01-053-2590 is a Spacer,sleeve, manufactured by Hdt Expeditionary Systems Inc, classified under FSC 5365 (No Item Name Available). Status: active.

What are the part numbers for NSN 5365-01-053-2590?

NSN 5365-01-053-2590 has 3 cross-referenced part numbers: 18115 (Drs Environmental Systems Inc), 18115 (Engineered Air Systems, Inc. Dba Drs Sustainment Systems), 18115 (Hdt Expeditionary Systems Inc).

What NSN replaces 5365-01-053-2590?

There are 9 known substitutes for 5365-01-053-2590: 4730-00-119-9861, 6750-00-194-3306, 5340-00-513-5945 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 18115?

Key specifications for 18115: Material: STEEL OVERALL; Corner Shape: SQUARE ALL CORNERS; Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES; Overall Length: 0.3800 INCHES NOMINAL IN. 6 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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