Quote for ST4M178A4 Boeing Company The Part with NSN 5310-01-030-4920

Part Number:  ST4M178A4
Manufacturer:  boeing company the
NIIN:  10304920
Item Name :  washer spring tensi
CAGE Code:  76301
INC Code:  15938
Country:  USA
NCB Code:  01
FSG:  53 Hardware and Abrasives
Last Updated:  01-14-2026

Are you looking quote for part ST4M178A4? The Boeing Company The-manufactured component (CAGE Code: 76301) is documented under NSN 5310-01-030-4920 as Washer Spring Tensi. For the fastest quote, please complete our RFQ form with details about ST4M178A4. We guarantee a response within 15 minutes.

ASAP Components provides the verified ST4M178A4, classified under INC 15938, FSG 53 Hardware and Abrasives, FSC 5310 Nuts and Washers, NIIN 01-030-4920, and NCB 01. Submit your requirements today to receive immediate pricing and availability information.

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NSN Information for Part Number ST4M178A4 with NSN 5310-01-030-4920, 5310010304920

NSNFSCNIINCLSHazmatDEMILCancelled NSN
5310-01-030-4920

Item PartTypeName:

WASHER,SPRING TENSION

53100103049200N
CIICHCCESDPMICCriticalityENAC
U U
Part NumberISCRNVCRNCCHCCMSDSSADC
ST4M178 REV D21CA

Characteristics Data of NSN 5310-01-030-4920, 5310010304920

MRCCriteriaCharacteristic
AAUBHOLE DIAMETER2.400 INCHES NOMINAL
ABKVOUTSIDE DIAMETER2.860 INCHES NOMINAL
ABKWOVERALL HEIGHT0.307 INCHES NOMINAL
ABPXMATERIAL THICKNESS0.025 INCHES NOMINAL
FEATSPECIAL FEATURESONE TAB,0.200 IN. W,ON EACH SIDE OF CENTER HOLE
MATTMATERIALCOPPER ALLOY 172 OVERALL
MDCLMATERIAL DOCUMENT AND CLASSIFICATIONQQ-C-533,TEMPER AT FED SPEC SINGLE MATERIAL RESPONSE OVERALL
SFTTSURFACE TREATMENTTIN OVERALL
STDCSURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-T-10727 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
STYLSTYLE DESIGNATORSPRING TENSION

Schedule B & Trade

End Use : 12300 Finished metal shapes
Schedule B : 7415210000 (NAICS 332722) Copper washers including spring washers not threaded
SITC : 69432 Washers (including spring washers) and similar articles, not threaded, of copper

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 D
Classification Control U
MGMT_CTL Sf9sx-v
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: 194120 - Washers/gaskets/pckg dvcs noi
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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