PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

157221Adapter,straight,pipe to Tube

U S Army Tank Automotive Command Amsta-Im-Mm · NSN 4730-00-288-9930 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-288-9930 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-288-9930. Primary manufacturer part number: 157221.
Features
  • Adapter,straight,pipe to Tube — FSC 4730
  • Connection Style: PLAIN (PIPE) SECOND END
  • Connection Style: DOUBLE COMPRESSION (TUBE) FIRST END
  • Thread Series Designator: NPTF SECOND END
  • Connection Type: THREADED EXTERNAL PIPE SECOND END
  • Thread Class: 2A FIRST END A
  • Connection Type: THREADED INTERNAL TUBE FIRST END
  • Thread Series Designator: UNS FIRST END
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Copper Alloy Overall construction
General Description

The Adapter,straight,pipe to Tube, cataloged under National Stock Number 4730-00-288-9930, 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 U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4730-00-288-9930
Primary Part Number157221
Item NameAdapter,straight,pipe to Tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerU S Army Tank Automotive Command Amsta-Im-Mm
StatusCANCELLED
Connection StylePLAIN (PIPE) SECOND END
Connection StyleDOUBLE COMPRESSION (TUBE) FIRST END
Thread Series DesignatorNPTF SECOND END
Connection TypeTHREADED EXTERNAL PIPE SECOND END
Thread Class2A FIRST END A
Connection TypeTHREADED INTERNAL TUBE FIRST END
Thread Series DesignatorUNS FIRST END
Nominal Pipe Size Accommodated0.125 INCHES SECOND END IN
Seat Nominal Radius0.062 INCHES FIRST END IN
Thread Quantity Per Inch24 FIRST END
MaterialCOPPER ALLOY OVERALL
Nominal Thread Size0.438 INCHES FIRST END IN
Nominal Outside Diameter Tube Accommodated0.250 INCHES FIRST END IN
Nominal Thread Size0.125 INCHES SECOND END IN
Nominal Overall Length0.750 INCHES IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
4730-00-011-4919CNDX1 INTERCHANGEABLE
Adapter,straight,pipe to Tube
Brunswick Corporation Div Brunswick Corp Defense Div
4730-00-277-8837169983 INTERCHANGEABLE
Elbow,pipe to Tube
U S Army Tank Automotive Command Amsta-Im-Mm
4730-00-288-9965106-20006 INTERCHANGEABLE
Adapter,straight,pipe to Tube
Danfoss Power Solutions II, Llc
6640-00-501-549631262 INTERCHANGEABLE
Oven,laboratory
Precision Scientific Petroleum Instruments Co
5210-00-813-6644124A INTERCHANGEABLE
Caliper,micrometer,inside
L.s. Starrett Company (the) Div Tool Division
6645-01-013-6254124U INTERCHANGEABLE
Clock,digital
E S Enterprises
5996-01-037-2084 INTERCHANGEABLE
Amplifier,audio-Radio Frequency
6530-01-345-7845124A INTERCHANGEABLE
Table,utility,hospital
S and S X-Ray Products Inc
5930-01-459-180215722-1 INTERCHANGEABLE
Switch,pressure
Hydra-Electric Company Dba Hydra-Electric Co
3431-01-533-8337I-24A INTERCHANGEABLE
Feeder,wire,welding
Miller Electric Mfg. Llc
Cross-Reference Index
Part NumberManufacturer
CNDX1 U S Army Tank Automotive Command Amsta-Im-Mm (USA)
188D1-4X1-8 Imperial (USA)
157221 PRIMARY U S Army Tank Automotive Command Amsta-Im-Mm (USA)
12-4A Spx Corporation Dba O T C Tool & Equip Division Div Spx Corp - Kent-Moore/otc Divisons Dba Use CAGE Code 3e2t9 for Cataloging (USA)
188-D-04X02 Imperial (USA)
188-D Imperial (USA)
6200X4 Dana Corp Weatherhead Div (USA)
6200X4 Danfoss Power Solutions II, Llc (USA)
Related Parts
4730-00-011-4919INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
CNDX1
4730-00-277-8837INTERCHANGEABLE
ELBOW,PIPE TO TUBE
169983
4730-00-288-9965INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
106-20006
6640-00-501-5496INTERCHANGEABLE
OVEN,LABORATORY
31262
5210-00-813-6644INTERCHANGEABLE
CALIPER,MICROMETER,INSIDE
124A
6645-01-013-6254INTERCHANGEABLE
CLOCK,DIGITAL
124U
5996-01-037-2084INTERCHANGEABLE
AMPLIFIER,AUDIO-RADIO FREQUENCY
6530-01-345-7845INTERCHANGEABLE
TABLE,UTILITY,HOSPITAL
124A
5930-01-459-1802INTERCHANGEABLE
SWITCH,PRESSURE
15722-1
3431-01-533-8337INTERCHANGEABLE
FEEDER,WIRE,WELDING
I-24A
5340-01-585-2311INTERCHANGEABLE
HANDLE,MANUAL CONTROL
124A
5330-01-603-6676INTERCHANGEABLE
GASKET

Frequently Asked Questions

What is NSN 4730-00-288-9930?

NSN 4730-00-288-9930 is a Adapter,straight,pipe to Tube, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-00-288-9930?

NSN 4730-00-288-9930 has 8 cross-referenced part numbers: CNDX1 (U S Army Tank Automotive Command Amsta-Im-Mm), 188D1-4X1-8 (Imperial), 157221 (U S Army Tank Automotive Command Amsta-Im-Mm), 12-4A (Spx Corporation Dba O T C Tool & Equip Division Div Spx Corp - Kent-Moore/otc Divisons Dba Use CAGE Code 3e2t9 for Cataloging), 188-D-04X02 (Imperial) and 3 more.

What NSN replaces 4730-00-288-9930?

There are 12 known substitutes for 4730-00-288-9930: 4730-00-011-4919, 4730-00-277-8837, 4730-00-288-9965 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 157221?

Key specifications for 157221: Connection Style: PLAIN (PIPE) SECOND END; Connection Style: DOUBLE COMPRESSION (TUBE) FIRST END; Thread Series Designator: NPTF SECOND END; Connection Type: THREADED EXTERNAL PIPE SECOND END. 16 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-00-288-9930 still in active supply?

NSN 4730-00-288-9930 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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