Quote for NAS1581A4H9T National Aerospace Standards Com Part with NSN 5305-00-527-1875

Part Number:  NAS1581A4H9T
NIIN:  5271875
Item Name :  screw close toleran
CAGE Code:  80205
FSC:  5305 Screws
INC Code:  29294
Country:  USA
NCB Code:  00
FSG:  53 Hardware and Abrasives
Last Updated:  02-05-2026

Are you looking quote for part NAS1581A4H9T? The National Aerospace Standards Com-manufactured component (CAGE Code: 80205) is documented under NSN 5305-00-527-1875 as Screw Close Toleran. For the fastest quote, please complete our RFQ form with details about NAS1581A4H9T. We guarantee a response within 15 minutes.

ASAP Components provides the verified NAS1581A4H9T, classified under INC 29294, FSG 53 Hardware and Abrasives, FSC 5305 Screws, NIIN 00-527-1875, and NCB 00. Submit your requirements today to receive immediate pricing and availability information.

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NSN Information for Part Number NAS1581A4H9T with NSN 5305-00-527-1875, 5305005271875

NSNFSCNIINCLSHazmatDEMILCancelled NSN
5305-00-527-1875

Item PartTypeName:

SCREW,CLOSE TOLERANCE

53050052718750N
CIICHCCESDPMICCriticalityENAC
U U
Part NumberISCRNVCRNCCHCCMSDSSADC
NAS1581A4H9225

Characteristics Data of NSN 5305-00-527-1875, 5305005271875

MRCCriteriaCharacteristic
CQFMHARDNESS RATING36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL
CRSQCOUNTERSINK ANGLE99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
MATTMATERIALSTEEL COMP 4140 OR STEEL COMP E4340 OR STEEL COMP 6150 OR STEEL COMP 8735 OR STEEL COMP 8740 OVERALL
MDCLMATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-5626 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5000 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-8503 MIL SPEC 3RD MATERIAL RESPONSE OR MIL-S-6098 MIL SPEC 4TH MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 5TH MATERIAL RESPONSE OVERALL
SFTTSURFACE TREATMENTCADMIUM OVERALL
STDCSURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TYPE 2 CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THSDTHREAD SERIES DESIGNATORUNF
ZZZKSPECIFICATION/STANDARD DATA80205-NAS1581 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
AAJDTHREAD CLASS3A
AAJFTHREAD DIRECTIONRIGHT-HAND
AASATHREAD LENGTH0.378 INCHES MINIMUM AND 0.428 INCHES MAXIMUM
AASBFASTENER LENGTH0.950 INCHES MINIMUM AND 0.980 INCHES MAXIMUM
AASKHEAD STYLEFLAT COUNTERSUNK
AASLHEAD DIAMETER0.3504 INCHES MINIMUM AND 0.3988 INCHES MAXIMUM
AAURGRIP DIAMETER0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM
ABQZINTERNAL DRIVE STYLEHIGH-TORQUE
AHYMNOMINAL THREAD DIAMETER0.250 INCHES
ANEEGRIP LENGTH0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM
CMLPTHREAD QUANTITY PER INCH28
CQBCMINIMUM TENSILE STRENGTH160000 POUNDS PER SQUARE INCH

Schedule B & Trade

End Use : 12110 Iron and steel products, other
Schedule B : 7318152000 (NAICS 332722) Bolts and bolts and their nuts or washers exported in the same shipment
SITC : 69421 Screws, bolts, nuts, screw hooks, rivets, washers and similar articles, threaded, of iron or steel

Identification

CRITL The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
HMIC N - Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
PMIC U - Precious metal content is unknown

NSN Management Codes

AAC Z
Classification Control U
MGMT_CTL Sf9sx-n
Quantity per pack 1
Repariability
Shelf Life N/A
SOS Sms
Unit of Measure Ea

Freight Information

ACC: B - Construction materials: includes paint and related materials, prefabricated building, wood products, metal and composition mater
ADC: A - Shipment is not a consolidation and does not exceed 84 inches in any dimension.
LTL: W - Rating variable
NMFC: 093486 - Bolts, nuts or screws, noi (sub 3)
SHC: 9 - Other or no special handling required (sh)
TCC: Z - No special type of cargo code applicable
WCC: 713 - Metal hardware

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