PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A-262Restrictor Unit,fluid Flow

Dwyer Instruments Inc · NSN 4730-01-735-0495 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-735-0495 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-735-0495. Primary manufacturer part number: A-262.
Features
  • Restrictor Unit,fluid Flow — FSC 4730
  • End Connection Similarity: NOT IDENTICAL
  • Material: STEEL COMP 316 OVERALL
  • Pressure Rating: 5690.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
  • End Connection Type: THREADED FEMALE SECOND CONNECTION
  • End Connection Type: THREADED MALE FIRST CONNECTION
  • Design Type: STRAIGHT
  • Thread Series: NPT ALL CONNECTIONS
Applications
  • Applications requiring Steel Comp 316 Overall construction
General Description

The Restrictor Unit,fluid Flow, cataloged under National Stock Number 4730-01-735-0495, 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 Dwyer Instruments Inc. Government technical data includes 10 verified specifications, 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-735-0495
Primary Part NumberA-262
Item NameRestrictor Unit,fluid Flow
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerDwyer Instruments Inc
StatusACTIVE
End Connection SimilarityNOT IDENTICAL
MaterialSTEEL COMP 316 OVERALL
Pressure Rating5690.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
End Connection TypeTHREADED FEMALE SECOND CONNECTION
End Connection TypeTHREADED MALE FIRST CONNECTION
Design TypeSTRAIGHT
Thread SeriesNPT ALL CONNECTIONS
Thread Size Designator0.500 ALL CONNECTIONS
Thread DirectionRIGHT-HAND ALL CONNECTIONS
Operating Temp Range-4.0 TO 302.0 FAHRENHEIT DEGF
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
4530-00-394-8499A-2-5-33 INTERCHANGEABLE
Atomizer,assembly
Todd Combustion Inc
5950-00-402-7521MA262 INTERCHANGEABLE
Coil,radio Frequency
Fabco Generators, Inc. Dba Fabco Power
3030-01-023-2677 INTERCHANGEABLE
Belt,round
5140-01-434-6137A262 INTERCHANGEABLE
Holder,socket Wrench
Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
Cross-Reference Index
Part NumberManufacturer
S9593GDMMO022TBL7-123FIG6-548-18 Pyrogenesis Inc. (CAN)
A-262 PRIMARY Dwyer Instruments Inc (USA)
Related Parts
4530-00-394-8499INTERCHANGEABLE
ATOMIZER,ASSEMBLY
A-2-5-33
5950-00-402-7521INTERCHANGEABLE
COIL,RADIO FREQUENCY
MA262
3030-01-023-2677INTERCHANGEABLE
BELT,ROUND
5140-01-434-6137INTERCHANGEABLE
HOLDER,SOCKET WRENCH
A262

Frequently Asked Questions

What is NSN 4730-01-735-0495?

NSN 4730-01-735-0495 is a Restrictor Unit,fluid Flow, manufactured by Dwyer Instruments Inc, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-735-0495?

NSN 4730-01-735-0495 has 2 cross-referenced part numbers: S9593GDMMO022TBL7-123FIG6-548-18 (Pyrogenesis Inc.), A-262 (Dwyer Instruments Inc).

What NSN replaces 4730-01-735-0495?

There are 4 known substitutes for 4730-01-735-0495: 4530-00-394-8499, 5950-00-402-7521, 3030-01-023-2677 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A-262?

Key specifications for A-262: End Connection Similarity: NOT IDENTICAL; Material: STEEL COMP 316 OVERALL; Pressure Rating: 5690.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS; End Connection Type: THREADED FEMALE SECOND CONNECTION. 13 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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