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P15121-20 — SCREW,ASSEMBLED WASHER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

P15121-20: SCREW,ASSEMBLED WASHER.

The SCREW,ASSEMBLED WASHER is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: PAN NO. 2, head_height: 0.072 INCHES MINIMUM AND 0.082 INCHES MAXIMUM IN, thread_class: 2A A, head_diameter: 0.256 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN, thread_length: 0.407 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN.

This part is cataloged in the U.S. Government catalog under NSN 5305-00-036-6972, 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
P15121-20
NSN: 5305-00-036-6972
FSC: 5305 — Screws
CAGE: 45722 — USM CORP SUB OF EMHART INDUSTRIES INC PARKER-KALON FASTENER DIV (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_stylePAN NO. 2
head_height0.072 INCHES MINIMUM AND 0.082 INCHES MAXIMUM IN
thread_class2A A
head_diameter0.256 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
thread_length0.407 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
fastener_length0.469 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
washer_quantity1
thread_directionRIGHT-HAND
surface_treatmentCADMIUM AND CHROMATE OVERALL
internal_drive_styleSLOT
primary_washer_styleFLAT EXTERNAL TEETH
NSN5305-00-036-6972
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: P15121-20 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
HEAD HEIGHT: 0.072 INCHES MINIMUM AND 0.082 INCHES MAXIMUM IN
•
FASTENER LENGTH: 0.469 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
PRIMARY WASHER OUTSIDE DIAMETER: 0.270 INCHES MINIMUM AND 0.285 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.407 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.138 INCHES IN
•
HEAD STYLE: PAN NO. 2
•
PRIMARY WASHER STYLE: FLAT EXTERNAL TEETH
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.072 INCHES MINIMUM AND 0.082 INCHES MAXIMUM IN
FASTENER LENGTH0.469 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
PRIMARY WASHER OUTSIDE DIAMETER0.270 INCHES MINIMUM AND 0.285 INCHES MAXIMUM IN
THREAD LENGTH0.407 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.138 INCHES IN
HEAD STYLEPAN NO. 2
PRIMARY WASHER STYLEFLAT EXTERNAL TEETH
THREAD DIRECTIONRIGHT-HAND
PRIMARY WASHER MATERIAL THICKNESS0.014 INCHES MINIMUM AND 0.020 INCHES MAXIMUM IN
OTHER ITEMS IN FSC 5305 — Screws
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5305-00-001-5016 5305-00-001-9160 5305-00-001-9629 5305-00-001-9742 5305-00-001-9768 5305-00-003-4306 5305-00-003-6694 5305-00-003-6753
SUBSTITUTES & CROSS-REFERENCES 5
61-060841-40-0142B0542BReference document
Same NSN cross-reference
Reference document — Design control — primary reference
04306-0147Reference document
Same NSN cross-reference
Reference document — Secondary reference
69-662-20Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
13214E3290-20Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
4306-0147Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 P15121-20?
P15121-20 is a SCREW,ASSEMBLED WASHER.
What parts can replace P15121-20?
There are 5 known substitutes for P15121-20: 61-060841-40-0142B0542B, 04306-0147, 69-662-20 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for P15121-20?
P15121-20 is cataloged in the U.S. Government catalog under NSN 5305-00-036-6972. 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.