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8907807-1 — WASHER,RECESSED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

8907807-1: WASHER,RECESSED.

The WASHER,RECESSED is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 2024 OVERALL, recess_angle: 98.0 DEGREES MINIMUM AND 102.0 DEGREES MAXIMUM, hole_diameter: 0.155 INCHES MINIMUM AND 0.161 INCHES MAXIMUM IN, recess_diameter: 0.222 INCHES MINIMUM AND 0.242 INCHES MAXIMUM IN, outside_diameter: 0.271 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN, style_designator: RECESSED. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-256-5233, 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
8907807-1
NSN: 5310-01-256-5233
NIINs: 012565233, 014144210
FSC: 5310 — Nuts and Washers
CAGE: 06481 — NORTHROP GRUMMAN SYSTEMS CORPORATION DBA NORTHROP GRUMMAN SYSTEMS CORP (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 2024 OVERALL
recess_angle98.0 DEGREES MINIMUM AND 102.0 DEGREES MAXIMUM
hole_diameter0.155 INCHES MINIMUM AND 0.161 INCHES MAXIMUM IN
recess_diameter0.222 INCHES MINIMUM AND 0.242 INCHES MAXIMUM IN
outside_diameter0.271 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN
style_designatorRECESSED
surface_treatmentCHROMATE OVERALL
material_thickness0.032 INCHES NOMINAL IN
material_document_and_classificationQQ-A-250/5 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
part_name_assigned_by_controlling_agencyNAVY SPECIAL PROJECT
surface_treatment_document_and_classificationMIL-C-5541 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5310-01-256-5233
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 8907807-1 · OEM ⚠ 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
•
STYLE DESIGNATOR: RECESSED
•
OUTSIDE DIAMETER: 0.271 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.022 INCHES MINIMUM AND 0.042 INCHES MAXIMUM IN
•
RECESS DIAMETER: 0.222 INCHES MINIMUM AND 0.242 INCHES MAXIMUM IN
•
MATERIAL: ALUMINUM ALLOY 2024 OVERALL
•
HOLE DIAMETER: 0.151 INCHES MINIMUM AND 0.161 INCHES MAXIMUM IN
•
RECESS ANGLE: 98.0 DEGREES MINIMUM AND 102.0 DEGREES MAXIMUM
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORRECESSED
OUTSIDE DIAMETER0.271 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN
MATERIAL THICKNESS0.022 INCHES MINIMUM AND 0.042 INCHES MAXIMUM IN
RECESS DIAMETER0.222 INCHES MINIMUM AND 0.242 INCHES MAXIMUM IN
MATERIALALUMINUM ALLOY 2024 OVERALL
HOLE DIAMETER0.151 INCHES MINIMUM AND 0.161 INCHES MAXIMUM IN
RECESS ANGLE98.0 DEGREES MINIMUM AND 102.0 DEGREES MAXIMUM
SUBSTITUTES & CROSS-REFERENCES 2
10110226Reference document
Same NSN cross-reference
Reference document — Informative reference only
5728-1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 8907807-1?
8907807-1 is a WASHER,RECESSED.
What parts can replace 8907807-1?
There are 2 known substitutes for 8907807-1: 10110226, 5728-1. Substitute compatibility should be verified for your specific system.
What is the NSN for 8907807-1?
8907807-1 is cataloged in the U.S. Government catalog under NSN 5310-01-256-5233. 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.