PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

15257Adapter,straight,pipe to Boss

Coxwells Inc Dba Coxreels · NSN 4730-01-399-0799 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-399-0799 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-399-0799. Primary manufacturer part number: 15257.
Features
  • Adapter,straight,pipe to Boss — FSC 4730
  • Nominal Thread Size: 1.000 INCHES FIRST END IN
  • Connection Type: THREADED INTERNAL BOSS SECOND END
  • Connection Style: SWIVEL NUT INVERTED FLARE (PIPE) FIRST END
  • Connection Type: THREADED INTERNAL PIPE FIRST END
  • Connection Style: GASKET SEAL (BOSS) SECOND END
  • Furnished Items and Quantity: 1 PREFORMED PACKING
  • 1 verified cross-reference
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
General Description

The Adapter,straight,pipe to Boss, cataloged under National Stock Number 4730-01-399-0799, is classified within Federal Supply Class 4730 (No Item Name Available) of the Pipe, Tubing, Hose, and Fittings group. The primary manufacturer of record is Coxwells Inc Dba Coxreels. Government technical data includes 6 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. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-399-0799
Primary Part Number15257
Item NameAdapter,straight,pipe to Boss
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerCoxwells Inc Dba Coxreels
StatusACTIVE
Nominal Thread Size1.000 INCHES FIRST END IN
Connection TypeTHREADED INTERNAL BOSS SECOND END
Connection StyleSWIVEL NUT INVERTED FLARE (PIPE) FIRST END
Connection TypeTHREADED INTERNAL PIPE FIRST END
Connection StyleGASKET SEAL (BOSS) SECOND END
Furnished Items and Quantity1 PREFORMED PACKING
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5905-00-501-5622 INTERCHANGEABLE
Resistor,variable,wire Wound,non
5136-00-729-567554232 INTERCHANGEABLE
Tap,thread Cutting
Tapco Cutting Tools Inc
5320-00-827-3240NAS1525-07 INTERCHANGEABLE
Pin-Rivet
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5905-01-031-4479 INTERCHANGEABLE
Resistor,variable,wire Wound,non
2530-01-048-081315257 INTERCHANGEABLE
Track Shoe,vehicular
Intertractor America Corp
3431-01-055-0469 INTERCHANGEABLE
Welding Set
5930-01-210-2252 INTERCHANGEABLE
Switch,pressure
6685-01-498-258615257 INTERCHANGEABLE
Gage,pressure,dial Indicating
Smatco Industries Inc
6515-01-581-69671040-085 INTERCHANGEABLE
Bridge,stereo,surgical Microscop
Carl Zeiss Meditec Inc Div Meditec
5995-01-684-557115257 INTERCHANGEABLE
Cable Assembly,power,electrical
Power Test, Llc
Cross-Reference Index
Part NumberManufacturer
15257 PRIMARY Coxwells Inc Dba Coxreels (USA)
Related Parts
5905-00-501-5622INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,NON
5136-00-729-5675INTERCHANGEABLE
TAP,THREAD CUTTING
54232
5320-00-827-3240INTERCHANGEABLE
PIN-RIVET
NAS1525-07
5905-01-031-4479INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,NON
2530-01-048-0813INTERCHANGEABLE
TRACK SHOE,VEHICULAR
15257
3431-01-055-0469INTERCHANGEABLE
WELDING SET
5930-01-210-2252INTERCHANGEABLE
SWITCH,PRESSURE
6685-01-498-2586INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
15257
6515-01-581-6967INTERCHANGEABLE
BRIDGE,STEREO,SURGICAL MICROSCOP
1040-085
5995-01-684-5571INTERCHANGEABLE
CABLE ASSEMBLY,POWER,ELECTRICAL
15257

Frequently Asked Questions

What is NSN 4730-01-399-0799?

NSN 4730-01-399-0799 is a Adapter,straight,pipe to Boss, manufactured by Coxwells Inc Dba Coxreels, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-399-0799?

NSN 4730-01-399-0799 has 1 cross-referenced part number: 15257 (Coxwells Inc Dba Coxreels).

What NSN replaces 4730-01-399-0799?

There are 10 known substitutes for 4730-01-399-0799: 5905-00-501-5622, 5136-00-729-5675, 5320-00-827-3240 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 15257?

Key specifications for 15257: Nominal Thread Size: 1.000 INCHES FIRST END IN; Connection Type: THREADED INTERNAL BOSS SECOND END; Connection Style: SWIVEL NUT INVERTED FLARE (PIPE) FIRST END; Connection Type: THREADED INTERNAL PIPE FIRST END. 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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