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A73541-220L1 — FLANGE,PIPE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

A73541-220L1: FLANGE,PIPE.

The FLANGE,PIPE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY, style_designator: ROUND, ONE BOLT HOLE CIRCLE, flange_section_style: PLAIN FACE, LONG NECK, fsc_application_data: 2 1/2 GAL DESURGER, operating_pressure_and_type: 700.0 POUNDS PER SQUARE INCH (PSI) SALT WATER MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS, criticality_code_justification: ZZZY. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-310-7830, 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
A73541-220L1
NSN: 4730-01-310-7830
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 03950 — NAVAL INVENTORY CONTROL POINT MECHANICSBURG (USA)
SPECIFICATIONS
materialCOPPER ALLOY
style_designatorROUND, ONE BOLT HOLE CIRCLE
bolt_hole_quantity6
flange_section_stylePLAIN FACE, LONG NECK
fsc_application_data2 1/2 GAL DESURGER
operating_pressure_and_type700.0 POUNDS PER SQUARE INCH (PSI) SALT WATER MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS
criticality_code_justificationZZZY
material_document_and_classificationMIL-C-15726 MIL SPEC SINGLE MATERIAL RESPONSE
nominal_pipe_size_for_which_designed2.500 INCHES IN
reference_number_differentiating_characteristicsQUALITY CONTROL IN ACCORDANCE WITH NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS
maximum_operating_temp_and_media_for_which_designed212.0 FAHRENHEIT WATER, SALT DEGF
NSN4730-01-310-7830
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: A73541-220L1 · 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
•
FSC APPLICATION DATA: 2 1/2 GAL DESURGER
•
NOMINAL PIPE SIZE FOR WHICH DESIGNED: 2.500 INCHES IN
•
MAXIMUM OPERATING TEMP AND MEDIA FOR WHICH DESIGNED: 212.0 FAHRENHEIT WATER, SALT DEGF
•
OPERATING PRESSURE AND TYPE: 700.0 POUNDS PER SQUARE INCH (PSI) SALT WATER MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS
•
FLANGE SECTION STYLE: PLAIN FACE, LONG NECK
•
CRITICALITY CODE JUSTIFICATION: ZZZY
•
STYLE DESIGNATOR: ROUND, ONE BOLT HOLE CIRCLE
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-C-15726 MIL SPEC SINGLE MATERIAL RESPONSE
TECHNICAL CHARACTERISTICS
FSC APPLICATION DATA2 1/2 GAL DESURGER
NOMINAL PIPE SIZE FOR WHICH DESIGNED2.500 INCHES IN
MAXIMUM OPERATING TEMP AND MEDIA FOR WHICH DESIGNED212.0 FAHRENHEIT WATER, SALT DEGF
OPERATING PRESSURE AND TYPE700.0 POUNDS PER SQUARE INCH (PSI) SALT WATER MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS
FLANGE SECTION STYLEPLAIN FACE, LONG NECK
CRITICALITY CODE JUSTIFICATIONZZZY
STYLE DESIGNATORROUND, ONE BOLT HOLE CIRCLE
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-C-15726 MIL SPEC SINGLE MATERIAL RESPONSE
BOLT HOLE QUANTITY6
MATERIALCOPPER ALLOY
OTHER ITEMS IN FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4730-00-000-1895 4730-00-000-4289 4730-00-000-4445 4730-00-000-8373 4730-00-000-8897 4730-00-001-0007 4730-00-001-0008
SUBSTITUTES & CROSS-REFERENCES 3
800398J ITEM 3Reference document
Same NSN cross-reference
Reference document — Secondary reference
A73541-220Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
800398J ITEM 3L1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A73541-220L1?
A73541-220L1 is a FLANGE,PIPE.
What parts can replace A73541-220L1?
There are 3 known substitutes for A73541-220L1: 800398J ITEM 3, A73541-220, 800398J ITEM 3L1. Substitute compatibility should be verified for your specific system.
What is the NSN for A73541-220L1?
A73541-220L1 is cataloged in the U.S. Government catalog under NSN 4730-01-310-7830. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
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.