PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

177-DCoupling,tube

Flagg Stanley G & Co Inc Dba Flagg Brass · NSN 4730-01-556-7261 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-556-7261 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-556-7261. Primary manufacturer part number: 177-D.
Features
  • Coupling,tube — FSC 4730
  • Maximum Operating Temp: 180.0 FAHRENHEIT SINGLE RESPONSE DEGF
  • 2 verified cross-references
  • Primary manufacturer: Flagg Stanley G & Co Inc Dba Flagg Brass
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
General Description

The Coupling,tube, cataloged under National Stock Number 4730-01-556-7261, 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 Flagg Stanley G & Co Inc Dba Flagg Brass. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-556-7261
Primary Part Number177-D
Item NameCoupling,tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerFlagg Stanley G & Co Inc Dba Flagg Brass
StatusACTIVE
Maximum Operating Temp180.0 FAHRENHEIT SINGLE RESPONSE DEGF
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5950-00-248-9063SMC174753 INTERCHANGEABLE
Coil,telephone
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5210-01-646-5632177D INTERCHANGEABLE
Plumb Bob
L.s. Starrett Company (the) Div Tool Division
Cross-Reference Index
Part NumberManufacturer
17721 PC NO 19 The Electric Heater Co Dba Hubbell Electric Heater Co. (USA)
177-D PRIMARY Flagg Stanley G & Co Inc Dba Flagg Brass (USA)
Related Parts
5950-00-248-9063INTERCHANGEABLE
COIL,TELEPHONE
SMC174753
5210-01-646-5632INTERCHANGEABLE
PLUMB BOB
177D

Frequently Asked Questions

What is NSN 4730-01-556-7261?

NSN 4730-01-556-7261 is a Coupling,tube, manufactured by Flagg Stanley G & Co Inc Dba Flagg Brass, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-556-7261?

NSN 4730-01-556-7261 has 2 cross-referenced part numbers: 17721 PC NO 19 (The Electric Heater Co Dba Hubbell Electric Heater Co.), 177-D (Flagg Stanley G & Co Inc Dba Flagg Brass).

What NSN replaces 4730-01-556-7261?

There are 2 known substitutes for 4730-01-556-7261: 5950-00-248-9063, 5210-01-646-5632. Verify interchangeability with system specifications before substitution.

What are the specifications of 177-D?

Key specifications for 177-D: Maximum Operating Temp: 180.0 FAHRENHEIT SINGLE RESPONSE DEGF; End Item Identification: HEATER,WATER,ELECTRIC. 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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