N5557 — SEAT,VALVE

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

N5557: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY SEAT, thickness: 0.016 INCHES MINIMUM AND 0.047 INCHES MAXIMUM IN, hole_diameter: 0.443 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN, flange_diameter: 1.750 INCHES NOMINAL IN, hardness_rating: 30.0 ROCKWELL B MINIMUM AND 50.0 ROCKWELL B MAXIMUM, overall_diameter: 0.672 INCHES MINIMUM AND 0.703 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-359-0458, 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

N5557

NSN: 5310-00-359-0458
NIINs: 003590458, 012294209
FSC: 5310 — Nuts and Washers
CAGE: 56442 — DIAMOND REO TRUCK CO (USA)

SPECIFICATIONS

material	COPPER ALLOY SEAT
thickness	0.016 INCHES MINIMUM AND 0.047 INCHES MAXIMUM IN
hole_diameter	0.443 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN
flange_diameter	1.750 INCHES NOMINAL IN
hardness_rating	30.0 ROCKWELL B MINIMUM AND 50.0 ROCKWELL B MAXIMUM
overall_diameter	0.672 INCHES MINIMUM AND 0.703 INCHES MAXIMUM IN
body_inside_diameter	0.718 INCHES NOMINAL IN
body_outside_diameter	1.375 INCHES NOMINAL IN
seating_surface_shape	FLAT
peripheral_shape_style	ROUND
center_hole_shape_style	ROUND
cross-sectional_shape_style	RECTANGULAR
NSN	5310-00-359-0458

COMPONENT DIAGRAM

KEY FEATURES

•

OVERALL DIAMETER: 0.672 INCHES MINIMUM AND 0.703 INCHES MAXIMUM IN

•

HARDNESS RATING: 30.0 ROCKWELL B MINIMUM AND 50.0 ROCKWELL B MAXIMUM

•

MATERIAL DOCUMENT AND CLASSIFICATION: AQQ-C-576 ASSN STD 1ST MATERIAL RESPONSE OVERALL

•

CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR

•

PERIPHERAL SHAPE STYLE: ROUND

•

MATERIAL: COPPER ALLOY OVERALL

•

CENTER HOLE SHAPE STYLE: ROUND

•

HOLE DIAMETER: 0.443 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN

TECHNICAL CHARACTERISTICS

OVERALL DIAMETER	0.672 INCHES MINIMUM AND 0.703 INCHES MAXIMUM IN
HARDNESS RATING	30.0 ROCKWELL B MINIMUM AND 50.0 ROCKWELL B MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATION	AQQ-C-576 ASSN STD 1ST MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLE	RECTANGULAR
PERIPHERAL SHAPE STYLE	ROUND
MATERIAL	COPPER ALLOY OVERALL
CENTER HOLE SHAPE STYLE	ROUND
HOLE DIAMETER	0.443 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN
THICKNESS	0.016 INCHES MINIMUM AND 0.047 INCHES MAXIMUM IN

SUBSTITUTES & CROSS-REFERENCES 10

48123HSame NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

311392Reference document

Same NSN cross-reference

Reference document — Secondary reference

811180Reference document

Same NSN cross-reference

Reference document — Secondary reference

231343Reference document

Same NSN cross-reference

Reference document — Secondary reference

5214930Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

GM-3-21Reference document

Same NSN cross-reference

Reference document — Advisory reference — outside the item-of-supply concept

LIFECYCLE

NSN statusCancelled· U.S. Government catalog

Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required

Ready to buy N5557?

Compare prices from verified sellers on eBay

Buy on eBay →

As an eBay Partner, PartsTable may earn a commission. Your price is not affected.

FREQUENTLY ASKED QUESTIONS

What is N5557?

N5557 is a SEAT,VALVE.

What parts can replace N5557?

There are 10 known substitutes for N5557: 48123H, 311392, 811180 and 7 more. Substitute compatibility should be verified for your specific system.

What is the NSN for N5557?

N5557 is cataloged in the U.S. Government catalog under NSN 5310-00-359-0458. This indicates validated use in U.S. government and defense supply chains.

Community Feedback

N5557 — SEAT,VALVE

Request a Quote — N5557