PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

307BSpacer,sleeve

Frederick Custom Machining Inc · NSN 5365-00-398-7242 · FSC 5365 · No Item Name Available
Verified by PartsTable
NSN 5365-00-398-7242 — this item is cataloged by the U.S. Government under National Stock Number 5365-00-398-7242. Primary manufacturer part number: 307B.
Features
  • Spacer,sleeve — FSC 5365
  • Body Outside Diameter: 1.5620 INCHES NOMINAL IN
  • Material: COPPER ALLOY OVERALL
  • Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES
  • Corner Shape: SQUARE ALL CORNERS
  • Body Inside Diameter: 0.5310 INCHES NOMINAL IN
  • 5 verified cross-references
  • Primary manufacturer: Frederick Custom Machining Inc
Applications
  • Applications requiring Copper Alloy Overall construction
General Description

The Spacer,sleeve, cataloged under National Stock Number 5365-00-398-7242, is classified within Federal Supply Class 5365 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Frederick Custom Machining Inc. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5365-00-398-7242
Primary Part Number307B
Item NameSpacer,sleeve
FSC / FSG5365 / 53 — No Item Name Available
ManufacturerFrederick Custom Machining Inc
StatusACTIVE
Body Outside Diameter1.5620 INCHES NOMINAL IN
MaterialCOPPER ALLOY OVERALL
Style DesignatorSOLID, PLAIN, NO OUTSIDE FLANGES
Corner ShapeSQUARE ALL CORNERS
Body Inside Diameter0.5310 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
2520-00-163-241710997 INTERCHANGEABLE
Fork
Komatsu America Corporation
5935-00-502-7096750 INTERCHANGEABLE
Plug,telephone
Switchcraft Inc.
5965-00-799-5490241-900-003-603 INTERCHANGEABLE
Microphone Element
Roanwell, Llc
5995-01-015-1457307B INTERCHANGEABLE
Clock,frequency Standard
Finnigan Corporation
4820-01-077-109544583 INTERCHANGEABLE
Valve,relief,pressure and Temper
Sullair Corp
3020-01-152-879610997 INTERCHANGEABLE
Gear,ring
DP Manufacturing Inc.
5305-01-332-630219A702381P520 INTERCHANGEABLE
Screw,tapping
General Electric Co Mobile Communications Business Div
4820-01-465-2431 INTERCHANGEABLE
Valve,check
5130-01-534-706310997 INTERCHANGEABLE
Mandrel,riveter,blind
Gage Bilt, Inc.
5130-01-647-7627307B INTERCHANGEABLE
Grinder,portable
Ingersoll-Rand Co Power Tool Div
Cross-Reference Index
Part NumberManufacturer
26957DPC307 Frederick Custom Machining Inc (USA)
26930DPC307 Frederick Custom Machining Inc (USA)
26933DPC307 Frederick Custom Machining Inc (USA)
10997 Rps-Fl, Inc. Dba Rps Inc (USA)
307B PRIMARY Frederick Custom Machining Inc (USA)
Related Parts
2520-00-163-2417INTERCHANGEABLE
FORK
10997
5935-00-502-7096INTERCHANGEABLE
PLUG,TELEPHONE
750
5965-00-799-5490INTERCHANGEABLE
MICROPHONE ELEMENT
241-900-003-603
5995-01-015-1457INTERCHANGEABLE
CLOCK,FREQUENCY STANDARD
307B
4820-01-077-1095INTERCHANGEABLE
VALVE,RELIEF,PRESSURE AND TEMPER
44583
3020-01-152-8796INTERCHANGEABLE
GEAR,RING
10997
5305-01-332-6302INTERCHANGEABLE
SCREW,TAPPING
19A702381P520
4820-01-465-2431INTERCHANGEABLE
VALVE,CHECK
5130-01-534-7063INTERCHANGEABLE
MANDREL,RIVETER,BLIND
10997
5130-01-647-7627INTERCHANGEABLE
GRINDER,PORTABLE
307B

Frequently Asked Questions

What is NSN 5365-00-398-7242?

NSN 5365-00-398-7242 is a Spacer,sleeve, manufactured by Frederick Custom Machining Inc, classified under FSC 5365 (No Item Name Available). Status: active.

What are the part numbers for NSN 5365-00-398-7242?

NSN 5365-00-398-7242 has 5 cross-referenced part numbers: 26957DPC307 (Frederick Custom Machining Inc), 26930DPC307 (Frederick Custom Machining Inc), 26933DPC307 (Frederick Custom Machining Inc), 10997 (Rps-Fl, Inc. Dba Rps Inc), 307B (Frederick Custom Machining Inc).

What NSN replaces 5365-00-398-7242?

There are 10 known substitutes for 5365-00-398-7242: 2520-00-163-2417, 5935-00-502-7096, 5965-00-799-5490 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 307B?

Key specifications for 307B: Overall Length: 0.2500 INCHES NOMINAL IN; Body Outside Diameter: 1.5620 INCHES NOMINAL IN; Material: COPPER ALLOY OVERALL; Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES. 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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