Part identity

1603660-38

Material: Steel comp 301 or steel comp 303 overall Material Document and Classification: MIL-S-5059, comp 301, cond a mil spec 1ST material response or QQ-S-764, type 303 fed spec 2ND material response overall

Colston Engineering Services Limited

Avg quote: 14 minFulfilled from Anaheim, CAAS9120:2025 · ISO 9001 · FAA AC 00-56BC of C, lot & date code with every line

Part description

ASAP supports this specific part for replacement, spare-pool replenishment, retrofit, and urgent maintenance requirements. Quote requests can include alternate MPN, condition preferences, certification needs, and plant-specific receiving instructions so procurement gets a clear sourcing response before purchase.

Specifications

MPN: 1603660-38
Item name: Material: Steel comp 301 or steel comp 303 overall Material Document and Classification: MIL-S-5059, comp 301, cond a mil spec 1ST material response or QQ-S-764, type 303 fed spec 2ND material response overall
Manufacturer code: U6531
Manufacturer: Colston Engineering Services Limited

Certifications & documentation

UL Recognized
CE
C of C available on request

Manufacturer

Colston Engineering Services Limited

Authorized-distributor or qualified-aftermarket source. Parts shipped from this manufacturer include full traceability paperwork and counterfeit-mitigation per SAE AS6081.

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NSN Information for Part Number 1603660-38 with NSN 5310-00-392-0691, 5310003920691

NSN	FSC	NIIN	CLS	Hazmat	DEMIL	Cancelled NSN
5310003920691 Item Description: Washer Recessed	5310	003920691	0	N
	CIIC	HCC	ESD	PMIC	Criticality	ENAC
	U			U
Part Number	ISC	RNVC	RNCC	HCC	MSDS	SADC
1603660-38	C	9	5

Characteristics Data of NSN 5310-00-392-0691, 5310003920691

MRC	Criteria	Characteristic
MATT	MATERIAL	STEEL COMP 301 OVERALL OR STEEL COMP 303 OVERALL
MDCL	MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-5059,COMP 301,COND A MIL SPEC 1ST MATERIAL RESPONSE OVERALL OR QQ-S-764,TYPE 303 FED SPEC 2ND MATERIAL RESPONSE OVERALL