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135172E — COVER,REGULATING ROD

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

135172E: COVER,REGULATING ROD.

The COVER,REGULATING ROD is a the manufacturer industrial component. Key specifications include end_item_identification: BABCOCK AND WILCOX MODEL IOWA OIL BURNER, general_characteristics_item_description: STEEL CASTING. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-174-5939, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
135172E
NSN: 4730-00-174-5939
NIINs: 001745939, 011297779
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 58529 — THE BABCOCK & WILCOX COMPANY DBA B & W SERVICE CO DIV B&W SERVICE COMPANY (USA)
SPECIFICATIONS
end_item_identificationBABCOCK AND WILCOX MODEL IOWA OIL BURNER
general_characteristics_item_descriptionSTEEL CASTING
NSN4730-00-174-5939
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 135172E · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
SOCKET DIAMETER: 0.875 INCHES NOMINAL IN
•
FLANGE DIAMETER: 3.750 INCHES MINIMUM AND 3.828 INCHES MAXIMUM IN
•
FACE SEATING SURFACE CONDITION: MACHINED
•
NOMINAL PIPE SIZE FOR WHICH DESIGNED: 0.500 INCHES IN
•
SOCKET DEPTH: 0.395 INCHES NOMINAL IN
•
MAXIMUM OPERATING TEMP AND MEDIA FOR WHICH DESIGNED: 850.0 FAHRENHEIT STEAM AND 425.0 FAHRENHEIT WATER DEGF
•
OPERATING PRESSURE AND TYPE: 600.0 POUNDS PER SQUARE INCH (PSI) STEAM MAXIMUM REQUIRED AND 1000.0 POUNDS PER SQUARE INCH (PSI) WATER MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS
•
FLANGE SECTION STYLE: RAISED FACE, SOCKET NECK
TECHNICAL CHARACTERISTICS
SOCKET DIAMETER0.875 INCHES NOMINAL IN
FLANGE DIAMETER3.750 INCHES MINIMUM AND 3.828 INCHES MAXIMUM IN
FACE SEATING SURFACE CONDITIONMACHINED
NOMINAL PIPE SIZE FOR WHICH DESIGNED0.500 INCHES IN
SOCKET DEPTH0.395 INCHES NOMINAL IN
MAXIMUM OPERATING TEMP AND MEDIA FOR WHICH DESIGNED850.0 FAHRENHEIT STEAM AND 425.0 FAHRENHEIT WATER DEGF
OPERATING PRESSURE AND TYPE600.0 POUNDS PER SQUARE INCH (PSI) STEAM MAXIMUM REQUIRED AND 1000.0 POUNDS PER SQUARE INCH (PSI) WATER MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS
FLANGE SECTION STYLERAISED FACE, SOCKET NECK
STYLE DESIGNATORROUND, ONE BOLT HOLE CIRCLE
BOLT HOLE DIAMETER0.625 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 5
135172E PIECE 60Reference document
Same NSN cross-reference
Reference document — Secondary reference
5000S4823-64496Reference document
Same NSN cross-reference
Reference document — Secondary reference
80863CReference document
Same NSN cross-reference
Reference document — Secondary reference
152 1-2 INCH A182-F11STLReference document
Same NSN cross-reference
Reference document — Secondary reference
M18180/2-52A09ASame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 135172E?
135172E is a COVER,REGULATING ROD.
What parts can replace 135172E?
There are 5 known substitutes for 135172E: 135172E PIECE 60, 5000S4823-64496, 80863C and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 135172E?
135172E is cataloged in the U.S. Government catalog under NSN 4730-00-174-5939. This indicates validated use in U.S. government and defense supply chains.
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PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.