PartsTable
Technical Data Sheet
PartsTable / MRO / 90121-1
90121-1 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The SUPPRESSOR,PARASITIC is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, body_style: T-SHAPE, bore_shape: STRAIGHT, head_style: FILLISTER, shell_type: SOLID, body_length: 0.500 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-010-0711, 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
MRO→ MRO_GENERAL→ 90121-1
NSN: 5305-00-010-0711
FSC: 5305
CAGE: 92392 — ALLIS-CHALMERS CORP (USA)
SPECIFICATIONS
materialSTEEL OVERALL
body_styleT-SHAPE
bore_shapeSTRAIGHT
head_styleFILLISTER
shell_typeSOLID
body_length0.500 INCHES NOMINAL IN
head_height0.102 INCHES MINIMUM AND 0.113 INCHES MAXIMUM IN
thread_class2A A
bore_diameter55.00 MILLIMETERS NOMINAL MM
head_diameter0.250 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
overall_width0.593 INCHES NOMINAL IN
rating_methodELECTRICAL AND WINDING TURNS SINGLE COMPONENT SINGLE WINDING
NSN5305-00-010-0711
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 90121-1 · 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
•
INTERNAL DRIVE STYLE: SLOT
•
HEAD DIAMETER: 0.250 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
•
NONDEFINITIVE SPEC/STD DATA: 1 TYPE AND 4S STYLE
•
THREAD QUANTITY PER INCH: 32
•
HEAD HEIGHT: 0.102 INCHES MINIMUM AND 0.113 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.164 INCHES IN
•
THREAD CLASS: 2A A
•
THREAD LENGTH: 0.375 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
INTERNAL DRIVE STYLESLOT
HEAD DIAMETER0.250 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
NONDEFINITIVE SPEC/STD DATA1 TYPE AND 4S STYLE
THREAD QUANTITY PER INCH32
HEAD HEIGHT0.102 INCHES MINIMUM AND 0.113 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.164 INCHES IN
THREAD CLASS2A A
THREAD LENGTH0.375 INCHES MAXIMUM IN
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
MINIMUM TENSILE STRENGTH60000 POUNDS PER SQUARE INCH LBS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
0901-211Interchangeable
interchangeable cross-reference
interchangeable
60-600-0008-1Interchangeable
interchangeable cross-reference
interchangeable
12515Interchangeable
interchangeable cross-reference
interchangeable
658021Interchangeable
interchangeable cross-reference
interchangeable
211WInterchangeable
interchangeable cross-reference
interchangeable
90121-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 90121-1?
90121-1 is a SUPPRESSOR,PARASITIC. It is classified as a MRO (MRO_GENERAL).
What parts can replace 90121-1?
There are 13 known substitutes for 90121-1: 0901-211, 60-600-0008-1, 12515 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 90121-1?
90121-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-010-0711. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026