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538783 — VANE ASSEMBLY,FAN,AIRCRAFT GAS T

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

538783: VANE ASSEMBLY,FAN,AIRCRAFT GAS T.

VANE ASSEMBLY,FAN,AIRCRAFT GAS T. Key specifications include part_name_assigned_by_controlling_agency: VANE ASSEMBLY,STATOR,TURBINE ENGINE. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-844-1279, 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
538783
NSN: 5310-00-844-1279
NIINs: 008441279, 009163488
FSC: 5310 — Nuts and Washers
CAGE: 73030 — HAMILTON SUNDSTRAND CORPORATION DBA COLLINS AEROSPACE (USA)
SPECIFICATIONS
part_name_assigned_by_controlling_agencyVANE ASSEMBLY,STATOR,TURBINE ENGINE
NSN5310-00-844-1279
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 538783 · 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
•
WIDTH ACROSS FLATS: 0.365 INCHES MINIMUM AND 0.377 INCHES MAXIMUM IN
•
THREAD SERIES: UNF
•
HARDNESS RATING: 30.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5610 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.250 INCHES IN
•
NUT HEIGHT: 0.230 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
•
COUNTERSINK ANGLE: 90.0 DEGREES NOMINAL NUT
TYPICAL APPLICATIONS
  • Server thermal management and cooling
  • Hot-swap fan replacement in production environments
  • Redundant cooling for high-availability systems
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.365 INCHES MINIMUM AND 0.377 INCHES MAXIMUM IN
THREAD SERIESUNF
HARDNESS RATING30.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5610 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.250 INCHES IN
NUT HEIGHT0.230 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
COUNTERSINK ANGLE90.0 DEGREES NOMINAL NUT
NUT STYLESLOTTED, HEXAGON
THREAD CLASS3B
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 538783?
538783 is a VANE ASSEMBLY,FAN,AIRCRAFT GAS T.
What is the NSN for 538783?
538783 is cataloged in the U.S. Government catalog under NSN 5310-00-844-1279. 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.