Home · FSC 5305 Screws · NSN 5305-01-490-6858

NSN 5305-01-490-6858 — Screw,Close Tolerance

NIIN 01-490-6858 · unit of issue EA · AAC D (stocked, centrally managed (dla)) · source of supply SMS

Buying rhythm

from 4 government buys since 2018

The government has bought this item about every 1.1 years (very regular, gaps vary ±19%). Last buy Sep 9, 2021. If the rhythm holds, the next one falls between Mar 24, 2022 and Apr 20, 2023: a buy is overdue by the usual rhythm. 1 solicitation is open right now.

How well this works: for very regular items, "next buy about one typical gap after the last, give or take 112 days" caught the actual next buy 49% of the time across 5,054 past buys, against 20% for a fixed "one year later" guess. A rhythm, not a schedule: DLA buys when stock and demand say so. Every item due for a buy now.

Used on: F/A-18 Hornet and Super Hornet · all platforms

NSN 5305-01-490-6858 is the national stock number for a screw,close tolerance in federal supply class 5305 (Screws). It cross-references to 5 manufacturer part numbers from 19 CAGE codes, including Howmet Global Fastening Systems Inc, Sps Technologies, LLC, Sps Technologies, LLC Dba Aerospace Fasteners Group Div Aerospace - Santa Ana; the primary is 11827C4-13A. The federal catalog ties it to the F/A-18 Hornet and Super Hornet. The unit of issue is EA and the FLIS list price is $7.56.

The U.S. government has bought this item 10 times on record, most recently on September 9, 2021 at $5.83 each from Wesco Aircraft Hardware Corp.. 1 solicitation is open right now, the soonest due September 30, 2026 for 969 EA. No seller has confirmed stock of it here in the last 60 days; watching the number is free and the first listing triggers an alert.

part numbers from 19 CAGEs

open solicitation, all agencies

government buys in 24 months

sellers with confirmed stock

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Cross-references

Part numbers filed against this stock number, with the manufacturer (CAGE) and the FLIS reference codes.

Part number	CAGE	Manufacturer	Reference	Variation
TX1026C4-13A	06950	Howmet Global Fastening Systems Inc	3 · Design control (vendor)	2 · Fully interchangeable
TX1026C4-13A	56878	Sps Technologies, LLC	3 · Design control (vendor)	2 · Fully interchangeable
TX1026C4-13A	80539	Sps Technologies, LLC Dba Aerospace Fasteners Group Div Aerospace - Santa Ana	3 · Design control (vendor)	2 · Fully interchangeable
TX1026C4-13A	73197	Hi-Shear Corporation	3 · Design control (vendor)	2 · Fully interchangeable
TX1026C4-13A	06725	Sps Technologies, LLC	3 · Design control (vendor)	2 · Fully interchangeable
TX1026C4-13A	27624	Sps Technologies LLC	3 · Design control (vendor)	2 · Fully interchangeable
11827C4-13A	59563	Reid Products Inc.	5 · Secondary reference	2 · Fully interchangeable
3M1169C4-13A	58998	Fastener Innovation Technology, Inc.	5 · Secondary reference	2 · Fully interchangeable
3M1169C4-13A	1VSL7	Houston Precision Fasteners I Lp	5 · Secondary reference	2 · Fully interchangeable
3M1169C4-13A	0ZC92	Heartland Precision Fasteners Inc	5 · Secondary reference	2 · Fully interchangeable
3M1169C4-13A	06710	Valley-Todeco, Inc.	5 · Secondary reference	2 · Fully interchangeable
3M1169C4-13A	76301	The Boeing Company	5 · Secondary reference	2 · Fully interchangeable
GS1006C4-13A	1EM77	B & B Specialties Inc	5 · Secondary reference	2 · Fully interchangeable
TX1026C4-13A	L4528	Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc	5 · Secondary reference	9 · Reference only
TX1026C4-13A	C4293	Fairchild Fasteners Europe - Vsd Gmbh	5 · Secondary reference	2 · Fully interchangeable
TX1026C4-13A	92215	Howmet Global Fastening Systems Inc Div Torrance Operations	5 · Secondary reference	2 · Fully interchangeable
TX1026C4-13A	0PTK6	Sps Technologies Inc	5 · Secondary reference	9 · Reference only
TX1026C4-13A	17446	Huck International, Inc	5 · Secondary reference	2 · Fully interchangeable
WC1169C4-13A	60516	West Coast Aerospace, Inc.	5 · Secondary reference	2 · Fully interchangeable

Government demand

Open DLA RFQs (DIBBS)

SPE4A626U4173 · 969 EA · due Sep 30, 2026 · Y · AMSC C · DIBBS

What the government paid

Date	Vendor	Qty	Unit cost	Buyer	Reference
Sep 9, 2021	Wesco Aircraft Hardware Corp. 1V757	2,533	$5.83	Dla	SPE4A621F469X
Nov 17, 2020	Wesco Aircraft Hardware Corp. 1V757	1,390	$4.65	Dla	SPE4A621V5467
Jul 29, 2019	Wesco Aircraft Hardware Corp. 1V757	1,674	$4.15	Dla	SPE5E219V7727
Jun 21, 2018	C & D Electronics, Inc. 0RF16	1,542	$4.56	Dla	SPE5E218V8776
Oct 22, 2015	Boeing Distribution Services Defense LLC 3G1W3	1,955	$4.41	Dla	SPE5E216V0584
Mar 9, 2015	Defense Support Services, Inc. 1L3U4	1,789	$3.57	Dla	SPE5E215V4133
Jan 7, 2015	Wesco Aircraft Hardware Corp. 1V757	409	$4.00	Dla	SPE5E215V2630
Sep 12, 2014	Mount Lok Products Inc 55482	750	$4.05	Dla	SPE5E214VA991
Jul 7, 2014	Hms Systems LLC 1UYL6	749	$4.30	Dla	SPE5E214V8852
Jun 17, 2014	C & D Electronics, Inc. 0RF16	644	$4.83	Dla	SPE5E214V8458

Sources: DLA DIBBS procurement history (unit cost), DLA award history, FPDS (all agencies), SAM.gov notices. 10 buys on record in total.

Sellers with confirmed stock

No seller has confirmed stock on this NSN in the last 60 days. Watch it and we will email you when one does, or request a quote on 11827C4-13A.

Listings appear here only while the seller has confirmed them within 60 days. Sellers: list this part free.

DLA management data

FLIS unit price: $7.56
Unit of issue: EA
Acquisition advice: D — Stocked, centrally managed (DLA)
Source of supply: SMS
Effective: Jun 1, 2026

Item characteristics

Thread Class: 3A
Thread Direction: RIGHT-HAND
Thread Length: INCHES MINIMUM 0.420 AND INCHES MAXIMUM 0.430
Fastener Length: INCHES MINIMUM 1.222 AND INCHES MAXIMUM 1.252
Head Diameter: INCHES MINIMUM 0.497 AND INCHES MAXIMUM 0.506
Spline Major Diameter: INCHES MINIMUM 0.154 AND INCHES MAXIMUM 0.156
Grip Diameter: INCHES NOMINAL 0.249
Point Diameter: INCHES NOMINAL 0.425
End Item Identification: F18 E/F AIRCRAFT
Nominal Thread Diameter: INCHES 0.250
Grip Length: INCHES MINIMUM 0.802 AND INCHES MAXIMUM 0.822
Thread Quantity Per Inch: 28
Countersink Angle: DEGREES MINIMUM 99.0 AND DEGREES MAXIMUM 101.0
Part Name Assigned By Controlling Agency: BOLT, 100 DEGREE TENSION HEAD, GEAR DRIVE RECESS
Special Features: 125 KSI SHEAR STRENGTH
Material: OVERALL NICKEL ALLOY 718
Material Document And Classification: OVERALL ASSN STD SINGLE MATERIAL RESPONSE A-S 5662
Surface Treatment: OVERALL PASSIVATE
Thread Series Designator: UNIFIED NATIONAL JOINT FINE (UNJF)

About this page

An NSN is 13 digits: the 4-digit Federal Supply Class and the 9-digit NIIN. Cross-references come from the federal logistics record; demand from DLA DIBBS, SAM.gov and FPDS; ADs from the Federal Register. Refreshed nightly. Market Pulse shows the whole market.