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1189-59 — WASHER,FLAT

✓ Government record, cited
Hama · NUT WASHER
PRODUCT OVERVIEW

1189-59: WASHER,FLAT.

The WASHER,FLAT is a Hama industrial component. Key specifications include material: STEEL COMP 302 OR STEEL COMP 304 OVERALL, thickness: 0.013 INCHES MINIMUM AND 0.019 INCHES MAXIMUM IN, hole_diameter: 0.139 INCHES MINIMUM AND 0.159 INCHES MAXIMUM IN, overall_diameter: 0.227 INCHES MINIMUM AND 0.237 INCHES MAXIMUM IN, surface_treatment: OXIDE FILM OVERALL, peripheral_shape_style: ROUND. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-959-1059, 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
1189-59
NSN: 5310-00-959-1059
NIINs: 009591059, 014465323
FSC: 5310 — Nuts and Washers
CAGE: 88818 — KEARFOTT CORPORATION DIV GUIDANCE AND NAVIGATION DIVISION (USA)
SPECIFICATIONS
materialSTEEL COMP 302 OR STEEL COMP 304 OVERALL
thickness0.013 INCHES MINIMUM AND 0.019 INCHES MAXIMUM IN
hole_diameter0.139 INCHES MINIMUM AND 0.159 INCHES MAXIMUM IN
overall_diameter0.227 INCHES MINIMUM AND 0.237 INCHES MAXIMUM IN
surface_treatmentOXIDE FILM OVERALL
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
material_document_and_classificationQQ-S-766 FED SPEC ALL MATERIAL RESPONSES OR AISI ASSN STD ALL MATERIAL RESPONSES OVERALL
NSN5310-00-959-1059
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 1189-59 · Hama ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
OVERALL DIAMETER: 0.227 INCHES MINIMUM AND 0.237 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-766 FED SPEC ALL MATERIAL RESPONSES OR AISI ASSN STD ALL MATERIAL RESPONSES OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
SURFACE TREATMENT: OXIDE FILM OVERALL
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: STEEL COMP 302 OR STEEL COMP 304 OVERALL
•
CENTER HOLE SHAPE STYLE: ROUND
•
HOLE DIAMETER: 0.139 INCHES MINIMUM AND 0.159 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER0.227 INCHES MINIMUM AND 0.237 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-766 FED SPEC ALL MATERIAL RESPONSES OR AISI ASSN STD ALL MATERIAL RESPONSES OVERALL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
SURFACE TREATMENTOXIDE FILM OVERALL
PERIPHERAL SHAPE STYLEROUND
MATERIALSTEEL COMP 302 OR STEEL COMP 304 OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.139 INCHES MINIMUM AND 0.159 INCHES MAXIMUM IN
THICKNESS0.013 INCHES MINIMUM AND 0.019 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 5
73006101005Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
S8157N82-020Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
11142-223Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
S8157N207-015Reference document
Same NSN cross-reference
Reference document — Replaced / superseded reference
092-60443-139-226-2Reference document
Same NSN cross-reference
Reference document — Replaced / superseded reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1189-59?
1189-59 is a WASHER,FLAT manufactured by Hama.
What parts can replace 1189-59?
There are 5 known substitutes for 1189-59: 73006101005, S8157N82-020, 11142-223 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1189-59?
1189-59 is cataloged in the U.S. Government catalog under NSN 5310-00-959-1059. This indicates validated use in U.S. government and defense supply chains.
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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.