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4037520 — PIN,STRAIGHT,HEADED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

4037520: PIN,STRAIGHT,HEADED.

The PIN,STRAIGHT,HEADED is a the manufacturer industrial component. Key specifications include height: 0.050 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN, diameter: 0.311 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN, material: NICKEL ALLOY OVERALL, head_style: DEE, chamfer_length: 0.020 INCHES MINIMUM AND 0.040 INCHES MAXIMUM IN, surface_finish: 63.0 MICROINCHES HEAD BEARING SURFACE. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-367-8820, 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
4037520
NSN: 5315-00-367-8820
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
height0.050 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN
diameter0.311 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
materialNICKEL ALLOY OVERALL
head_styleDEE
chamfer_length0.020 INCHES MINIMUM AND 0.040 INCHES MAXIMUM IN
surface_finish63.0 MICROINCHES HEAD BEARING SURFACE
style_designatorSTRAIGHT
pin_chamfer_angle40.0 DEGREES MINIMUM AND 50.0 DEGREES MAXIMUM
pin_head_diameter0.560 INCHES MINIMUM AND 0.580 INCHES MAXIMUM IN
under_head_length1.020 INCHES MINIMUM AND 1.030 INCHES MAXIMUM IN
end_item_identificationW/S: SUPPORT EQUIPMENT, C-5 AIRCRAFT; ENGINE, AIRCRAFT, F100-PW-100 (F-15A/B/C/D); ENGINE, AIRCRAFT, F100-PW-220 (F-15C/D/E); AIRCRAFT, EAGLE F-15; AIRCRAFT, F-16 A
distance_from_centerline_to_flat0.160 INCHES MINIMUM AND 0.170 INCHES MAXIMUM IN
NSN5315-00-367-8820
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 4037520 · 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
•
SURFACE FINISH: 63.0 MICROINCHES HEAD BEARING SURFACE
•
CHAMFER LENGTH: 0.020 INCHES MINIMUM AND 0.040 INCHES MAXIMUM IN
•
DISTANCE FROM CENTERLINE TO FLAT: 0.160 INCHES MINIMUM AND 0.170 INCHES MAXIMUM IN
•
UNDER HEAD LENGTH: 1.020 INCHES MINIMUM AND 1.030 INCHES MAXIMUM IN
•
PIN CHAMFER ANGLE: 40.0 DEGREES MINIMUM AND 50.0 DEGREES MAXIMUM
•
STYLE DESIGNATOR: STRAIGHT
•
PIN HEAD DIAMETER: 0.560 INCHES MINIMUM AND 0.580 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5707 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS
SURFACE FINISH63.0 MICROINCHES HEAD BEARING SURFACE
CHAMFER LENGTH0.020 INCHES MINIMUM AND 0.040 INCHES MAXIMUM IN
DISTANCE FROM CENTERLINE TO FLAT0.160 INCHES MINIMUM AND 0.170 INCHES MAXIMUM IN
UNDER HEAD LENGTH1.020 INCHES MINIMUM AND 1.030 INCHES MAXIMUM IN
PIN CHAMFER ANGLE40.0 DEGREES MINIMUM AND 50.0 DEGREES MAXIMUM
STYLE DESIGNATORSTRAIGHT
PIN HEAD DIAMETER0.560 INCHES MINIMUM AND 0.580 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5707 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
DIAMETER0.311 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
HEAD STYLEDEE
OTHER ITEMS IN FSC 5315 — Nails, Machine Keys, and Pins
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5315-00-000-1037 5315-00-000-1067 5315-00-000-1245 5315-00-000-1372 5315-00-000-1412 5315-00-001-1571 5315-00-001-1572 5315-00-001-1602
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 4037520?
4037520 is a PIN,STRAIGHT,HEADED.
What is the NSN for 4037520?
4037520 is cataloged in the U.S. Government catalog under NSN 5315-00-367-8820. 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.