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AMS5557 — TUBE,METALLIC

✓ Government record, cited
— · PIPE SECTION
PRODUCT OVERVIEW

AMS5557: TUBE,METALLIC.

The TUBE,METALLIC is a the manufacturer industrial component. Key specifications include diameter: 0.250 INCHES NOMINAL IN, material: STEEL COMP 321, construction: STRAIGHT SEAMED, wall_thickness: 0.028 INCHES NOMINAL IN, welding_method: FUSION, first_end_style: PLAIN. This part is cataloged in the U.S.

Government catalog under NSN 4710-00-003-0095, 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
AMS5557
NSN: 4710-00-003-0095
NIINs: 000030095, 011026407, 011026425, 013253902, 014745886, 014745904, 014953454, 014969108, 014969118
FSC: 4710 — Pipe, Tube and Rigid Tubing
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
diameter0.250 INCHES NOMINAL IN
materialSTEEL COMP 321
constructionSTRAIGHT SEAMED
wall_thickness0.028 INCHES NOMINAL IN
welding_methodFUSION
first_end_stylePLAIN
special_featuresTUBING IS WELDED AND DRAWN
end_item_identificationAIRCRAFT,B-2 BOMBER
cross-sectional_shape_stylePLAIN ROUND
measuring_method_and_length120.000 INCHES MINIMUM RANDOM AND 144.000 INCHES MAXIMUM RANDOM IN
specification/standard_data81343-AS-5557 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
criticality_code_justificationFEAT
NSN4710-00-003-0095
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: AMS5557 · OEM ⚠ VERIFY BEFORE ORDERING Schedule = wall thickness, NOT pipe diameter. Sch 40 and Sch 80 have the same OD but different wall thickness. Nominal pipe size ≠ actual OD — a 1" pipe is actually 1.315" OD ✓ BROKER TIP Sch 40 = standard wall, Sch 80 = heavy wall (higher pressure), Sch 160 = extra heavy. Seamless pipe is required for high-pressure applications — welded pipe has lower ratings PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
MEASURING METHOD AND LENGTH: 60.000 INCHES MINIMUM RANDOM AND 288.000 INCHES MAXIMUM RANDOM IN
•
FIRST END STYLE: PLAIN
•
DIAMETER: 0.375 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: PLAIN ROUND
•
WALL THICKNESS: 0.028 INCHES NOMINAL IN
•
SECOND END RELATIONSHIP WITH FIRST END: IDENTICAL
•
SURFACE CONDITION AND LOCATION: OUTSIDE POLISHED
•
SPECIFICATION/STANDARD DATA: 81343-ASM 5557 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
TECHNICAL CHARACTERISTICS
MEASURING METHOD AND LENGTH60.000 INCHES MINIMUM RANDOM AND 288.000 INCHES MAXIMUM RANDOM IN
FIRST END STYLEPLAIN
DIAMETER0.375 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLEPLAIN ROUND
WALL THICKNESS0.028 INCHES NOMINAL IN
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
SURFACE CONDITION AND LOCATIONOUTSIDE POLISHED
SPECIFICATION/STANDARD DATA81343-ASM 5557 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
SURFACE TREATMENTPASSIVATE OVERALL
END ITEM IDENTIFICATIONGRUMMAN AEROSPACE CORP A10 AIRCRAFT
SUBSTITUTES & CROSS-REFERENCES 2
4.00OD.042WTSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
SAE-AMS5557Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandDemilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is AMS5557?
AMS5557 is a TUBE,METALLIC.
What parts can replace AMS5557?
There are 2 known substitutes for AMS5557: 4.00OD.042WT, SAE-AMS5557. Substitute compatibility should be verified for your specific system.
What is the NSN for AMS5557?
AMS5557 is cataloged in the U.S. Government catalog under NSN 4710-00-003-0095. This indicates validated use in U.S. government and defense supply chains.
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