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577R391H01 — WASHER,SPRING TENSION

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

577R391H01: WASHER,SPRING TENSION.

The WASHER,SPRING TENSION is a the manufacturer industrial component. Key specifications include material: STEEL COMP 631 OVERALL, hole_diameter: 1.495 INCHES MINIMUM AND 1.505 INCHES MAXIMUM IN, overall_height: 0.132 INCHES NOMINAL IN, outside_diameter: 1.718 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN, surface_treatment: PASSIVATE OVERALL, material_thickness: 0.014 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-073-8319, 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
577R391H01
NSN: 5310-00-073-8319
FSC: 5310 — Nuts and Washers
CAGE: 97942 — NORTHROP GRUMMAN SYSTEMS CORPORATION DBA NORTHROP GRUMMAN SYSTEMS CORP (USA)
SPECIFICATIONS
materialSTEEL COMP 631 OVERALL
hole_diameter1.495 INCHES MINIMUM AND 1.505 INCHES MAXIMUM IN
overall_height0.132 INCHES NOMINAL IN
outside_diameter1.718 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN
surface_treatmentPASSIVATE OVERALL
material_thickness0.014 INCHES NOMINAL IN
material_document_and_classificationAMS 5529 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-073-8319
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 577R391H01 · 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
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5529 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 1.718 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.014 INCHES NOMINAL IN
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
MATERIAL: STEEL COMP 631 OVERALL
•
HOLE DIAMETER: 1.495 INCHES MINIMUM AND 1.505 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.132 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5529 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER1.718 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN
MATERIAL THICKNESS0.014 INCHES NOMINAL IN
SURFACE TREATMENTPASSIVATE OVERALL
MATERIALSTEEL COMP 631 OVERALL
HOLE DIAMETER1.495 INCHES MINIMUM AND 1.505 INCHES MAXIMUM IN
OTHER ITEMS IN FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 577R391H01?
577R391H01 is a WASHER,SPRING TENSION.
What is the NSN for 577R391H01?
577R391H01 is cataloged in the U.S. Government catalog under NSN 5310-00-073-8319. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
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.