MM028338 — BEAM,STRUCTURAL

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

MM028338: BEAM,STRUCTURAL.

The BEAM,STRUCTURAL is a the manufacturer industrial component. Key specifications include length: 10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT, material: ALUMINUM ALLOY 7178, overall_width: 1.570 INCHES NOMINAL IN, heat_treatment: T-6 SOLUTION HEAT TREATED, first_tip_style: RIGHT QUARTER RADIUS, first_tip_radius: 0.063 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 9540-01-137-9744, 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

MM028338

NSN: 9540-01-137-9744
FSC: 9540 — Structural Shapes, Nonferrous Base Metal
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)

SPECIFICATIONS

length	10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT
material	ALUMINUM ALLOY 7178
overall_width	1.570 INCHES NOMINAL IN
heat_treatment	T-6 SOLUTION HEAT TREATED
first_tip_style	RIGHT QUARTER RADIUS
first_tip_radius	0.063 INCHES NOMINAL IN
second_tip_style	LEFT QUARTER RADIUS
basic_shape_style	H SHAPE
second_tip_radius	0.063 INCHES NOMINAL IN
fabrication_method	EXTRUDED
web_flange_thickness	0.063 INCHES NOMINAL IN
left_top_inside_angle	90.0 DEGREES NOMINAL
NSN	9540-01-137-9744

COMPONENT DIAGRAM

KEY FEATURES

•

FILLET RADIUS WHERE BOTTOM LEFT FLANGE JOINS WEB FLANGE/LEG: 0.090 INCHES NOMINAL IN

•

LENGTH: 10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT

•

LEFT BOTTOM INSIDE ANGLE: 90.0 DEGREES NOMINAL

•

LEFT SIDE TOP FLANGE DISTANCE TO CENTER OF BOTH FLANGES: 0.811 INCHES NOMINAL IN

•

WEB FLANGE THICKNESS: 0.063 INCHES NOMINAL IN

•

FOURTH TIP RELATIONSHIP TO PRECEDING TIPS: IDENTICAL W/SECOND TIP

•

RIGHT TOP INSIDE ANGLE: 90.0 DEGREES NOMINAL

•

LEFT SIDE FLANGE HEIGHT: 1.593 INCHES NOMINAL IN

TECHNICAL CHARACTERISTICS

FILLET RADIUS WHERE BOTTOM LEFT FLANGE JOINS WEB FLANGE/LEG	0.090 INCHES NOMINAL IN
LENGTH	10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT
LEFT BOTTOM INSIDE ANGLE	90.0 DEGREES NOMINAL
LEFT SIDE TOP FLANGE DISTANCE TO CENTER OF BOTH FLANGES	0.811 INCHES NOMINAL IN
WEB FLANGE THICKNESS	0.063 INCHES NOMINAL IN
FOURTH TIP RELATIONSHIP TO PRECEDING TIPS	IDENTICAL W/SECOND TIP
RIGHT TOP INSIDE ANGLE	90.0 DEGREES NOMINAL
LEFT SIDE FLANGE HEIGHT	1.593 INCHES NOMINAL IN
LEFT TOP INSIDE ANGLE	90.0 DEGREES NOMINAL
HEAT TREATMENT	T-6 SOLUTION HEAT TREATED

OTHER ITEMS IN FSC 9540 — Structural Shapes, Nonferrous Base Metal

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

9540-00-001-5119 9540-00-001-5122 9540-00-001-5123 9540-00-001-5135 9540-00-001-6756 9540-00-003-9517 9540-00-003-9539 9540-00-004-5243

SUBSTITUTES & CROSS-REFERENCES 2

AMS-QQ-A-200/13Reference document

Same NSN cross-reference

Reference document — Design control — primary reference

1M866Reference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is MM028338?

MM028338 is a BEAM,STRUCTURAL.

What parts can replace MM028338?

There are 2 known substitutes for MM028338: AMS-QQ-A-200/13, 1M866. Substitute compatibility should be verified for your specific system.

What is the NSN for MM028338?

MM028338 is cataloged in the U.S. Government catalog under NSN 9540-01-137-9744. This indicates validated use in U.S. government and defense supply chains.

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MM028338 — BEAM,STRUCTURAL

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