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74655A — PIPE,METALLIC

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

74655A: PIPE,METALLIC.

The PIPE,METALLIC is a the manufacturer industrial component. Key specifications include material: STEEL, construction: SEAMLESS, first_end_style: PLAIN, operating_pressure: 1598.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS, wall_thickness_designation: SCHEDULE STD, measuring_method_and_length: 120.000 INCHES MINIMUM RANDOM AND 240.000 INCHES MAXIMUM RANDOM IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-179-7285, 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
74655A
NSN: 5330-00-179-7285
NIINs: 001797285, 008218091
FSC: 5330 — Packing and Gasket Materials
CAGE: 64104 — DRESSER, LLC (USA)
SPECIFICATIONS
materialSTEEL
constructionSEAMLESS
first_end_stylePLAIN
operating_pressure1598.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
wall_thickness_designationSCHEDULE STD
measuring_method_and_length120.000 INCHES MINIMUM RANDOM AND 240.000 INCHES MAXIMUM RANDOM IN
specification/standard_data81343-ASTM A106 MANUFACTURERS STANDARD
nominal_pipe_size_designation3.500 INCHES IN
material_document_and_classificationASTM A106, GRADE B ASSN STD SINGLE MATERIAL RESPONSE
second_end_relationship_with_first_endIDENTICAL
NSN5330-00-179-7285
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 74655A MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
CROSS-SECTIONAL THICKNESS: 0.031 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.031 INCHES NOMINAL IN
OVERALL LENGTH20.907 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
OVERALL WIDTH13.437 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 2
29267Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
74655Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 74655A?
74655A is a PIPE,METALLIC.
What parts can replace 74655A?
There are 2 known substitutes for 74655A: 29267, 74655. Substitute compatibility should be verified for your specific system.
What is the NSN for 74655A?
74655A is cataloged in the U.S. Government catalog under NSN 5330-00-179-7285. 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.